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420089131 = 7112495973
BaseRepresentation
bin11001000010100…
…000110100101011
31002021110201221201
4121002200310223
51330020323011
6105403545031
713260461440
oct3102406453
91067421851
10420089131
111a6147200
12b882b177
1369056467
143db139c7
1526d30cc1
hex190a0d2b

420089131 has 12 divisors (see below), whose sum is σ = 527716336. Its totient is φ = 327341520.

The previous prime is 420089093. The next prime is 420089141. The reversal of 420089131 is 131980024.

It is a happy number.

It is not a de Polignac number, because 420089131 - 27 = 420089003 is a prime.

It is a super-2 number, since 2×4200891312 = 352949755968670322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 420089131.

It is not an unprimeable number, because it can be changed into a prime (420089141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 247140 + ... + 248833.

Almost surely, 2420089131 is an apocalyptic number.

420089131 is a deficient number, since it is larger than the sum of its proper divisors (107627205).

420089131 is a wasteful number, since it uses less digits than its factorization.

420089131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496002 (or 495991 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 420089131 is about 20496.0759902963. The cubic root of 420089131 is about 748.9402104260.

The spelling of 420089131 in words is "four hundred twenty million, eighty-nine thousand, one hundred thirty-one".

Divisors: 1 7 11 77 121 847 495973 3471811 5455703 38189921 60012733 420089131