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123307032472 = 23131499790957
BaseRepresentation
bin111001011010110101…
…0111111111110011000
3102210021110221021012121
41302311222333332120
54010013100014342
6132351345351024
711623443324331
oct1626552777630
9383243837177
10123307032472
1148326672608
121ba93338474
13b82138c610
145d7a633288
15331a497067
hex1cb5abff98

123307032472 has 32 divisors (see below), whose sum is σ = 249151770000. Its totient is φ = 56872900224.

The previous prime is 123307032439. The next prime is 123307032487. The reversal of 123307032472 is 274230703321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239583 + ... + 551374.

Almost surely, 2123307032472 is an apocalyptic number.

It is an amenable number.

123307032472 is an abundant number, since it is smaller than the sum of its proper divisors (125844737528).

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

123307032472 is a wasteful number, since it uses less digits than its factorization.

123307032472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792475 (or 792471 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 34.

Adding to 123307032472 its reverse (274230703321), we get a palindrome (397537735793).

The spelling of 123307032472 in words is "one hundred twenty-three billion, three hundred seven million, thirty-two thousand, four hundred seventy-two".

Divisors: 1 2 4 8 13 26 52 104 1499 2998 5996 11992 19487 38974 77948 155896 790957 1581914 3163828 6327656 10282441 20564882 41129764 82259528 1185644543 2371289086 4742578172 9485156344 15413379059 30826758118 61653516236 123307032472