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18702428022 = 2328098271553
BaseRepresentation
bin10001011010110000…
…000110011101110110
31210021101220210010100
4101122300012131312
5301300310144042
612331453534530
71231315005135
oct213260063566
953241823110
1018702428022
117a2803aa93
12375b4a4446
1319c090cb75
14c95c3791c
15746daa24c
hex45ac06776

18702428022 has 48 divisors (see below), whose sum is σ = 40647232080. Its totient is φ = 6214903296.

The previous prime is 18702427993. The next prime is 18702428033. The reversal of 18702428022 is 22082420781.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12041998 + ... + 12043550.

It is an arithmetic number, because the mean of its divisors is an integer number (846817335).

Almost surely, 218702428022 is an apocalyptic number.

18702428022 is an abundant number, since it is smaller than the sum of its proper divisors (21944804058).

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

18702428022 is a wasteful number, since it uses less digits than its factorization.

18702428022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3197 (or 3194 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The spelling of 18702428022 in words is "eighteen billion, seven hundred two million, four hundred twenty-eight thousand, twenty-two".

Divisors: 1 2 3 6 9 18 809 827 1553 1618 1654 2427 2481 3106 4659 4854 4962 7281 7443 9318 13977 14562 14886 27954 669043 1256377 1284331 1338086 2007129 2512754 2568662 3769131 3852993 4014258 6021387 7538262 7705986 11307393 11558979 12042774 22614786 23117958 1039023779 2078047558 3117071337 6234142674 9351214011 18702428022