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70387048 = 238798381
BaseRepresentation
bin1000011001000…
…00010101101000
311220110000212201
410030200111220
5121004341143
610552345544
71513165024
oct414402550
9156400781
1070387048
1136805916
121b6a52b4
1311775a54
1494c3384
1562a564d
hex4320568

70387048 has 8 divisors (see below), whose sum is σ = 131975730. Its totient is φ = 35193520.

The previous prime is 70387033. The next prime is 70387067. The reversal of 70387048 is 84078307.

It can be written as a sum of positive squares in only one way, i.e., 36024004 + 34363044 = 6002^2 + 5862^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 70386998 and 70387016.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4399183 + ... + 4399198.

Almost surely, 270387048 is an apocalyptic number.

It is an amenable number.

70387048 is a deficient number, since it is larger than the sum of its proper divisors (61588682).

70387048 is a wasteful number, since it uses less digits than its factorization.

70387048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8798387 (or 8798383 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 70387048 is about 8389.6989218923. The cubic root of 70387048 is about 412.8867224854.

The spelling of 70387048 in words is "seventy million, three hundred eighty-seven thousand, forty-eight".

Divisors: 1 2 4 8 8798381 17596762 35193524 70387048