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18952494 = 2311287159
BaseRepresentation
bin100100001001…
…1000100101110
31022122212221020
41020103010232
514322434434
61514115010
7320044041
oct110230456
938585836
1018952494
11a775320
12641ba66
133c076c2
142734c58
1519e5849
hex121312e

18952494 has 16 divisors (see below), whose sum is σ = 41351040. Its totient is φ = 5743160.

The previous prime is 18952489. The next prime is 18952513. The reversal of 18952494 is 49425981.

18952494 = 7082 + 7092 + ... + 7432.

It is a nialpdrome in base 11.

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, 143514 + ... + 143645.

It is an arithmetic number, because the mean of its divisors is an integer number (2584440).

Almost surely, 218952494 is an apocalyptic number.

18952494 is an abundant number, since it is smaller than the sum of its proper divisors (22398546).

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

18952494 is a wasteful number, since it uses less digits than its factorization.

18952494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287175.

The product of its digits is 103680, while the sum is 42.

The square root of 18952494 is about 4353.4462210989. The cubic root of 18952494 is about 266.6175843693.

The spelling of 18952494 in words is "eighteen million, nine hundred fifty-two thousand, four hundred ninety-four".

Divisors: 1 2 3 6 11 22 33 66 287159 574318 861477 1722954 3158749 6317498 9476247 18952494