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223502015020 = 22531360487121
BaseRepresentation
bin1101000000100111000…
…0100001101000101100
3210100220020110202020011
43100021300201220230
512130213003440040
6250401515503004
722101405532144
oct3201160415054
9710806422204
10223502015020
1186872073a09
1237396457a64
13180cb3ba63b
14ab6352b924
155c318993ea
hex3409c21a2c

223502015020 has 24 divisors (see below), whose sum is σ = 484494691968. Its totient is φ = 86516908800.

The previous prime is 223502014991. The next prime is 223502015027. The reversal of 223502015020 is 20510205322.

It is a junction number, because it is equal to n+sod(n) for n = 223502014982 and 223502015000.

It is not an unprimeable number, because it can be changed into a prime (223502015027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180242941 + ... + 180244180.

It is an arithmetic number, because the mean of its divisors is an integer number (20187278832).

Almost surely, 2223502015020 is an apocalyptic number.

223502015020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223502015020 is an abundant number, since it is smaller than the sum of its proper divisors (260992676948).

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

223502015020 is a wasteful number, since it uses less digits than its factorization.

223502015020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360487161 (or 360487159 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The spelling of 223502015020 in words is "two hundred twenty-three billion, five hundred two million, fifteen thousand, twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 360487121 720974242 1441948484 1802435605 3604871210 7209742420 11175100751 22350201502 44700403004 55875503755 111751007510 223502015020