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122007381328 = 24717794431831
BaseRepresentation
bin111000110100000110…
…1001110010101010000
3102122220220102011000001
41301220031032111100
53444332342200303
6132014401335344
711546312426050
oct1615015162520
9378826364001
10122007381328
1147819a93458
121b790037554
13b675047381
145c95ba3560
15329132531d
hex1c6834e550

122007381328 has 160 divisors (see below), whose sum is σ = 290484264960. Its totient is φ = 48453949440.

The previous prime is 122007381283. The next prime is 122007381329. The reversal of 122007381328 is 823183700221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122007381329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66633373 + ... + 66635203.

It is an arithmetic number, because the mean of its divisors is an integer number (1815526656).

Almost surely, 2122007381328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122007381328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145242132480).

122007381328 is an abundant number, since it is smaller than the sum of its proper divisors (168476883632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122007381328 is a wasteful number, since it uses less digits than its factorization.

122007381328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2385 (or 2379 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 122007381328 in words is "one hundred twenty-two billion, seven million, three hundred eighty-one thousand, three hundred twenty-eight".

Divisors: 1 2 4 7 8 14 16 17 28 34 56 68 79 112 119 136 158 238 272 316 443 476 553 632 886 952 1106 1264 1343 1772 1831 1904 2212 2686 3101 3544 3662 4424 5372 6202 7088 7324 7531 8848 9401 10744 12404 12817 14648 15062 18802 21488 24808 25634 29296 30124 31127 34997 37604 49616 51268 52717 60248 62254 69994 75208 102536 105434 120496 124508 139988 144649 150416 205072 210868 217889 244979 249016 279976 289298 421736 435778 489958 498032 559952 578596 594949 811133 843472 871556 979916 1012543 1157192 1189898 1622266 1743112 1959832 2025086 2314384 2379796 2459033 3244532 3486224 3919664 4050172 4164643 4759592 4918066 5677931 6489064 8100344 8329286 9519184 9836132 11355862 12978128 13789261 16200688 16658572 17213231 19672264 22711724 27578522 33317144 34426462 39344528 45423448 55157044 64079507 66634288 68852924 90846896 96524827 110314088 128159014 137705848 193049654 220628176 256318028 275411696 386099308 448556549 512636056 772198616 897113098 1025272112 1089351619 1544397232 1794226196 2178703238 3588452392 4357406476 7176904784 7625461333 8714812952 15250922666 17429625904 30501845332 61003690664 122007381328