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23973381712 = 2472237916829
BaseRepresentation
bin10110010100111011…
…001100011001010000
32021212202010222021101
4112110323030121100
5343044141203322
615002504434144
71506040245100
oct262473143120
967782128241
1023973381712
11a192392565
124790778954
132350939687
141235cab200
159549d4327
hex594ecc650

23973381712 has 120 divisors (see below), whose sum is σ = 57098131200. Its totient is φ = 9702620928.

The previous prime is 23973381703. The next prime is 23973381739. The reversal of 23973381712 is 21718337932.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1416114 + ... + 1432942.

It is an arithmetic number, because the mean of its divisors is an integer number (475817760).

Almost surely, 223973381712 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 23973381712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28549065600).

23973381712 is an abundant number, since it is smaller than the sum of its proper divisors (33124749488).

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

23973381712 is a wasteful number, since it uses less digits than its factorization.

23973381712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16953 (or 16940 counting only the distinct ones).

The product of its digits is 381024, while the sum is 46.

The spelling of 23973381712 in words is "twenty-three billion, nine hundred seventy-three million, three hundred eighty-one thousand, seven hundred twelve".

Divisors: 1 2 4 7 8 14 16 23 28 46 49 56 79 92 98 112 158 161 184 196 316 322 368 392 553 632 644 784 1106 1127 1264 1288 1817 2212 2254 2576 3634 3871 4424 4508 7268 7742 8848 9016 12719 14536 15484 16829 18032 25438 29072 30968 33658 50876 61936 67316 89033 101752 117803 134632 178066 203504 235606 269264 356132 387067 471212 712264 774134 824621 942424 1329491 1424528 1548268 1649242 1884848 2658982 2709469 3096536 3298484 5317964 5418938 6193072 6596968 9306437 10635928 10837876 13193936 18612874 18966283 21271856 21675752 30578293 37225748 37932566 43351504 61156586 65145059 74451496 75865132 122313172 130290118 148902992 151730264 214048051 244626344 260580236 303460528 428096102 489252688 521160472 856192204 1042320944 1498336357 1712384408 2996672714 3424768816 5993345428 11986690856 23973381712