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130021235 = 571541677
BaseRepresentation
bin1111011111111…
…11011101110011
3100001122202121022
413233333131303
5231241134420
620522450055
73136106441
oct757773563
9301582538
10130021235
1167436973
123766392b
1320c25356
14133a7b91
15b634c25
hex7bff773

130021235 has 16 divisors (see below), whose sum is σ = 158749632. Its totient is φ = 102211200.

The previous prime is 130021153. The next prime is 130021259. The reversal of 130021235 is 532120031.

It is not a de Polignac number, because 130021235 - 214 = 130004851 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191717 + ... + 192393.

It is an arithmetic number, because the mean of its divisors is an integer number (9921852).

Almost surely, 2130021235 is an apocalyptic number.

130021235 is a deficient number, since it is larger than the sum of its proper divisors (28728397).

130021235 is an equidigital number, since it uses as much as digits as its factorization.

130021235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 130021235 is about 11402.6854293188. The cubic root of 130021235 is about 506.6072830237.

Adding to 130021235 its reverse (532120031), we get a palindrome (662141266).

The spelling of 130021235 in words is "one hundred thirty million, twenty-one thousand, two hundred thirty-five".

Divisors: 1 5 71 355 541 677 2705 3385 38411 48067 192055 240335 366257 1831285 26004247 130021235