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122193008 = 24717292213
BaseRepresentation
bin1110100100010…
…00010001110000
322111221001021222
413102020101300
5222240134013
620043004212
73012423560
oct722102160
9274831258
10122193008
1162a7a463
1234b09668
131c414172
141232ada0
15aada508
hex7488470

122193008 has 80 divisors (see below), whose sum is σ = 296498880. Its totient is φ = 47566848.

The previous prime is 122193007. The next prime is 122193023. The reversal of 122193008 is 800391221.

It is a super-2 number, since 2×1221930082 = 29862262408176128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122193007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54110 + ... + 56322.

It is an arithmetic number, because the mean of its divisors is an integer number (3706236).

Almost surely, 2122193008 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 122193008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148249440).

122193008 is an abundant number, since it is smaller than the sum of its proper divisors (174305872).

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

122193008 is a wasteful number, since it uses less digits than its factorization.

122193008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274 (or 2268 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 122193008 is about 11054.0946259746. The cubic root of 122193008 is about 496.2289742311.

The spelling of 122193008 in words is "one hundred twenty-two million, one hundred ninety-three thousand, eight".

Divisors: 1 2 4 7 8 14 16 17 28 29 34 56 58 68 112 116 119 136 203 232 238 272 406 464 476 493 812 952 986 1624 1904 1972 2213 3248 3451 3944 4426 6902 7888 8852 13804 15491 17704 27608 30982 35408 37621 55216 61964 64177 75242 123928 128354 150484 247856 256708 263347 300968 449239 513416 526694 601936 898478 1026832 1053388 1091009 1796956 2106776 2182018 3593912 4213552 4364036 7187824 7637063 8728072 15274126 17456144 30548252 61096504 122193008