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23496988172 = 227196729839
BaseRepresentation
bin10101111000100001…
…111001011000001100
32020122112201200012012
4111320201321120030
5341110212110142
614443330000352
71461164050460
oct257041713014
966575650165
1023496988172
119a68489a99
1246791160b8
1322a602b3c8
1411cc8dc4a0
15927c80882
hex57887960c

23496988172 has 72 divisors (see below), whose sum is σ = 50221785600. Its totient is φ = 9396785376.

The previous prime is 23496988171. The next prime is 23496988181. The reversal of 23496988172 is 27188969432.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23496988171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2383229 + ... + 2393067.

It is an arithmetic number, because the mean of its divisors is an integer number (697524800).

Almost surely, 223496988172 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 23496988172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25110892800).

23496988172 is an abundant number, since it is smaller than the sum of its proper divisors (26724797428).

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

23496988172 is a wasteful number, since it uses less digits than its factorization.

23496988172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10003 (or 9934 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 59.

The spelling of 23496988172 in words is "twenty-three billion, four hundred ninety-six million, nine hundred eighty-eight thousand, one hundred seventy-two".

Divisors: 1 2 4 7 14 19 28 38 67 76 133 134 266 268 469 532 938 1273 1876 2546 4489 5092 8911 8978 9839 17822 17956 19678 31423 35644 39356 62846 68873 85291 125692 137746 170582 186941 275492 341164 373882 597037 659213 747764 1194074 1308587 1318426 2388148 2617174 2636852 4614491 5234348 9228982 12525047 18457964 25050094 44167271 50100188 87675329 88334542 175350658 176669084 309170897 350701316 618341794 839178149 1236683588 1678356298 3356712596 5874247043 11748494086 23496988172