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18353703352 = 232294212919
BaseRepresentation
bin10001000101111101…
…110100100110111000
31202101002201201210211
4101011331310212320
5300042022001402
612233115320504
71216551622135
oct210575644670
952332651724
1018353703352
117869206a86
123682750134
1319665b22ca
14c617bd58c
157264744d7
hex445f749b8

18353703352 has 8 divisors (see below), whose sum is σ = 34413193800. Its totient is φ = 9176851672.

The previous prime is 18353703349. The next prime is 18353703359. The reversal of 18353703352 is 25330735381.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18353703359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1147106452 + ... + 1147106467.

It is an arithmetic number, because the mean of its divisors is an integer number (4301649225).

Almost surely, 218353703352 is an apocalyptic number.

It is an amenable number.

18353703352 is a deficient number, since it is larger than the sum of its proper divisors (16059490448).

18353703352 is a wasteful number, since it uses less digits than its factorization.

18353703352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294212925 (or 2294212921 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 40.

The spelling of 18353703352 in words is "eighteen billion, three hundred fifty-three million, seven hundred three thousand, three hundred fifty-two".

Divisors: 1 2 4 8 2294212919 4588425838 9176851676 18353703352