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70028460 = 22325389047
BaseRepresentation
bin1000010110010…
…00110010101100
311212202210222200
410023020302230
5120411402320
610540541500
71510142415
oct413106254
9155683880
1070028460
1136590467
121b551890
131167b778
14942c80c
156234290
hex42c8cac

70028460 has 36 divisors (see below), whose sum is σ = 212420208. Its totient is φ = 18674208.

The previous prime is 70028459. The next prime is 70028461. The reversal of 70028460 is 6482007.

It is an interprime number because it is at equal distance from previous prime (70028459) and next prime (70028461).

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (70028461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194344 + ... + 194703.

Almost surely, 270028460 is an apocalyptic number.

It is an amenable number.

70028460 is an abundant number, since it is smaller than the sum of its proper divisors (142391748).

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

70028460 is a wasteful number, since it uses less digits than its factorization.

70028460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389062 (or 389057 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 70028460 is about 8368.3009028118. The cubic root of 70028460 is about 412.1843756415.

The spelling of 70028460 in words is "seventy million, twenty-eight thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 389047 778094 1167141 1556188 1945235 2334282 3501423 3890470 4668564 5835705 7002846 7780940 11671410 14005692 17507115 23342820 35014230 70028460