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87228074190 = 2352907602473
BaseRepresentation
bin101000100111100110…
…0101100100011001110
322100011002000021202110
41101033030230203032
52412120341333230
6104023320204450
76205410253125
oct1211714544316
9270132007673
1087228074190
1133aa1a79214
1214aa4609726
1382c17745aa
144316b04abc
152407d3a4b0
hex144f32c8ce

87228074190 has 16 divisors (see below), whose sum is σ = 209347378128. Its totient is φ = 23260819776.

The previous prime is 87228074189. The next prime is 87228074207. The reversal of 87228074190 is 9147082278.

It is a super-2 number, since 2×872280741902 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1453801207 + ... + 1453801266.

It is an arithmetic number, because the mean of its divisors is an integer number (13084211133).

Almost surely, 287228074190 is an apocalyptic number.

87228074190 is an abundant number, since it is smaller than the sum of its proper divisors (122119303938).

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

87228074190 is a wasteful number, since it uses less digits than its factorization.

87228074190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2907602483.

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 87228074190 in words is "eighty-seven billion, two hundred twenty-eight million, seventy-four thousand, one hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 2907602473 5815204946 8722807419 14538012365 17445614838 29076024730 43614037095 87228074190