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80070782 = 21121719463
BaseRepresentation
bin1001100010111…
…00100001111110
312120200000110112
410301130201332
5130444231112
611540110022
71661406341
oct461344176
9176600415
1080070782
114121a400
1222995312
131378667c
14a8c4458
157069a22
hex4c5c87e

80070782 has 24 divisors (see below), whose sum is σ = 139790448. Its totient is φ = 34253120.

The previous prime is 80070763. The next prime is 80070803. The reversal of 80070782 is 28707008.

It is a happy number.

It is a super-2 number, since 2×800707822 = 12822660260183048, which 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 11 ways as a sum of consecutive naturals, for example, 5618 + ... + 13845.

It is an arithmetic number, because the mean of its divisors is an integer number (5824602).

Almost surely, 280070782 is an apocalyptic number.

80070782 is a deficient number, since it is larger than the sum of its proper divisors (59719666).

80070782 is a wasteful number, since it uses less digits than its factorization.

80070782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19504 (or 19493 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 80070782 is about 8948.2278692487. The cubic root of 80070782 is about 431.0139798761.

The spelling of 80070782 in words is "eighty million, seventy thousand, seven hundred eighty-two".

Divisors: 1 2 11 17 22 34 121 187 242 374 2057 4114 19463 38926 214093 330871 428186 661742 2355023 3639581 4710046 7279162 40035391 80070782