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18860697922 = 211857304451
BaseRepresentation
bin10001100100001011…
…110110100101000010
31210200102201201121111
4101210023312211002
5302111314313142
612355310113534
71235246200333
oct214413664502
953612651544
1018860697922
117aa9410560
1237a44ab8aa
131a17645cb1
14cacc7628a
15755c1ee17
hex4642f6942

18860697922 has 8 divisors (see below), whose sum is σ = 30862960272. Its totient is φ = 8573044500.

The previous prime is 18860697913. The next prime is 18860697929. The reversal of 18860697922 is 22979606881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×188606979222 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18860697929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428652204 + ... + 428652247.

It is an arithmetic number, because the mean of its divisors is an integer number (3857870034).

Almost surely, 218860697922 is an apocalyptic number.

18860697922 is a deficient number, since it is larger than the sum of its proper divisors (12002262350).

18860697922 is a wasteful number, since it uses less digits than its factorization.

18860697922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857304464.

The product of its (nonzero) digits is 5225472, while the sum is 58.

The spelling of 18860697922 in words is "eighteen billion, eight hundred sixty million, six hundred ninety-seven thousand, nine hundred twenty-two".

Divisors: 1 2 11 22 857304451 1714608902 9430348961 18860697922