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23387009450 = 252766820027
BaseRepresentation
bin10101110001111110…
…010111000110101010
32020100212210011202012
4111301332113012222
5340344033300300
614424400435522
71455360205010
oct256176270652
966325704665
1023387009450
119a113a2392
124648318ba2
13228930293c
1411bc0708b0
1591d2a9435
hex571f971aa

23387009450 has 24 divisors (see below), whose sum is σ = 49714100832. Its totient is φ = 8018403120.

The previous prime is 23387009447. The next prime is 23387009461. The reversal of 23387009450 is 5490078332.

It is a super-2 number, since 2×233870094502 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23387009398 and 23387009407.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33409664 + ... + 33410363.

It is an arithmetic number, because the mean of its divisors is an integer number (2071420868).

Almost surely, 223387009450 is an apocalyptic number.

23387009450 is an abundant number, since it is smaller than the sum of its proper divisors (26327091382).

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

23387009450 is a wasteful number, since it uses less digits than its factorization.

23387009450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66820046 (or 66820041 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 23387009450 in words is "twenty-three billion, three hundred eighty-seven million, nine thousand, four hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 175 350 66820027 133640054 334100135 467740189 668200270 935480378 1670500675 2338700945 3341001350 4677401890 11693504725 23387009450