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82907284 = 22130315907
BaseRepresentation
bin1001111000100…
…01000010010100
312210000010102011
410330101002110
5132211013114
612120554004
72024462125
oct474210224
9183003364
1082907284
1142887519
1223922904
131423a785
14b02204c
15742a1c4
hex4f11094

82907284 has 12 divisors (see below), whose sum is σ = 145208224. Its totient is φ = 41419224.

The previous prime is 82907263. The next prime is 82907287. The reversal of 82907284 is 48270928.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82907287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2742 + ... + 13165.

Almost surely, 282907284 is an apocalyptic number.

It is an amenable number.

82907284 is a deficient number, since it is larger than the sum of its proper divisors (62300940).

82907284 is a wasteful number, since it uses less digits than its factorization.

82907284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17214 (or 17212 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 82907284 is about 9105.3437057587. The cubic root of 82907284 is about 436.0445834386.

The spelling of 82907284 in words is "eighty-two million, nine hundred seven thousand, two hundred eighty-four".

Divisors: 1 2 4 1303 2606 5212 15907 31814 63628 20726821 41453642 82907284