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78970034 = 21113713889
BaseRepresentation
bin1001011010011…
…11110010110010
312111121002112002
410231033302302
5130204020114
611500334002
71646143223
oct455176262
9174532462
1078970034
11406383a0
1222544302
131348c640
14a6b924a
156ded7de
hex4b4fcb2

78970034 has 32 divisors (see below), whose sum is σ = 141160320. Its totient is φ = 32659200.

The previous prime is 78970033. The next prime is 78970037. The reversal of 78970034 is 43007987.

It is a super-2 number, since 2×789700342 = 12472532539922312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78970034.

It is not an unprimeable number, because it can be changed into a prime (78970033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18362 + ... + 22250.

It is an arithmetic number, because the mean of its divisors is an integer number (4411260).

Almost surely, 278970034 is an apocalyptic number.

78970034 is a deficient number, since it is larger than the sum of its proper divisors (62190286).

78970034 is a wasteful number, since it uses less digits than its factorization.

78970034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3986.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 78970034 is about 8886.5085382280. The cubic root of 78970034 is about 429.0297829621.

The spelling of 78970034 in words is "seventy-eight million, nine hundred seventy thousand, thirty-four".

Divisors: 1 2 11 13 22 26 71 142 143 286 781 923 1562 1846 3889 7778 10153 20306 42779 50557 85558 101114 276119 552238 556127 1112254 3037309 3589547 6074618 7179094 39485017 78970034