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212639496 = 23316575347
BaseRepresentation
bin11001010110010…
…01111100001000
3112211010012112220
430223021330020
5413413430441
633033334040
75161256136
oct1453117410
9484105486
10212639496
11aa036223
125b267320
13350913b4
1420352756
1513a04466
hexcac9f08

212639496 has 32 divisors (see below), whose sum is σ = 532019040. Its totient is φ = 70823808.

The previous prime is 212639461. The next prime is 212639501. The reversal of 212639496 is 694936212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37095 + ... + 42441.

It is an arithmetic number, because the mean of its divisors is an integer number (16625595).

Almost surely, 2212639496 is an apocalyptic number.

It is an amenable number.

212639496 is an abundant number, since it is smaller than the sum of its proper divisors (319379544).

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

212639496 is a wasteful number, since it uses less digits than its factorization.

212639496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7013 (or 7009 counting only the distinct ones).

The product of its digits is 139968, while the sum is 42.

The square root of 212639496 is about 14582.1636254707. The cubic root of 212639496 is about 596.8721447594.

The spelling of 212639496 in words is "two hundred twelve million, six hundred thirty-nine thousand, four hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 24 1657 3314 4971 5347 6628 9942 10694 13256 16041 19884 21388 32082 39768 42776 64164 128328 8859979 17719958 26579937 35439916 53159874 70879832 106319748 212639496