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17864001942 = 2323939731379
BaseRepresentation
bin10000101000110001…
…110000100110010110
31201002222021022202120
4100220301300212112
5243041141030232
612112343320410
71201454340213
oct205061604626
951088238676
1017864001942
117637844076
123566750106
1318b8cc4967
14c16748b0a
156e849292c
hex428c70996

17864001942 has 32 divisors (see below), whose sum is σ = 35969011200. Its totient is φ = 5914627488.

The previous prime is 17864001941. The next prime is 17864001979. The reversal of 17864001942 is 24910046871.

17864001942 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 17864001894 and 17864001903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17864001941) 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, 553609 + ... + 584987.

It is an arithmetic number, because the mean of its divisors is an integer number (1124031600).

Almost surely, 217864001942 is an apocalyptic number.

17864001942 is an abundant number, since it is smaller than the sum of its proper divisors (18105009258).

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

17864001942 is a wasteful number, since it uses less digits than its factorization.

17864001942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32020.

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 17864001942 in words is "seventeen billion, eight hundred sixty-four million, one thousand, nine hundred forty-two".

Divisors: 1 2 3 6 239 397 478 717 794 1191 1434 2382 31379 62758 94137 94883 188274 189766 284649 569298 7499581 12457463 14999162 22498743 24914926 37372389 44997486 74744778 2977333657 5954667314 8932000971 17864001942