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70764380 = 2253538219
BaseRepresentation
bin1000011011111…
…00011101011100
311221011012110222
410031330131130
5121103430010
611004420512
71516326101
oct415743534
9157135428
1070764380
1136a43365
121b847738
131187871b
149580aa8
15632c355
hex437c75c

70764380 has 12 divisors (see below), whose sum is σ = 148605240. Its totient is φ = 28305744.

The previous prime is 70764371. The next prime is 70764383. The reversal of 70764380 is 8346707.

It is a self number, because there is not a number n which added to its sum of digits gives 70764380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70764383) 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, 1769090 + ... + 1769129.

It is an arithmetic number, because the mean of its divisors is an integer number (12383770).

Almost surely, 270764380 is an apocalyptic number.

It is an amenable number.

70764380 is an abundant number, since it is smaller than the sum of its proper divisors (77840860).

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

70764380 is a wasteful number, since it uses less digits than its factorization.

70764380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3538228 (or 3538226 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 70764380 is about 8412.1566794729. The cubic root of 70764380 is about 413.6232112127.

The spelling of 70764380 in words is "seventy million, seven hundred sixty-four thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 3538219 7076438 14152876 17691095 35382190 70764380