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90412449873 = 3421267126801
BaseRepresentation
bin101010000110100000…
…0001000000001010001
322122100222222022222120
41110031000020001101
52440131041343443
6105311312324453
76350335100214
oct1241500100121
9278328868876
1090412449873
113538651a859
1215632b43729
1386ab402565
1445399c377b
15254269e083
hex150d008051

90412449873 has 16 divisors (see below), whose sum is σ = 120886025472. Its totient is φ = 60107040000.

The previous prime is 90412449833. The next prime is 90412449947. The reversal of 90412449873 is 37894421409.

It is not a de Polignac number, because 90412449873 - 224 = 90395672657 is a prime.

It is a super-2 number, since 2×904124498732 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90412449833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3360073 + ... + 3386873.

It is an arithmetic number, because the mean of its divisors is an integer number (7555376592).

Almost surely, 290412449873 is an apocalyptic number.

It is an amenable number.

90412449873 is a deficient number, since it is larger than the sum of its proper divisors (30473575599).

90412449873 is a wasteful number, since it uses less digits than its factorization.

90412449873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29896.

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 90412449873 in words is "ninety billion, four hundred twelve million, four hundred forty-nine thousand, eight hundred seventy-three".

Divisors: 1 3 421 1263 2671 8013 26801 80403 1124491 3373473 11283221 33849663 71585471 214756413 30137483291 90412449873