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70650472 = 238831309
BaseRepresentation
bin1000011011000…
…00101001101000
311220221102020011
410031200221220
5121041303342
611002141304
71515343024
oct415405150
9156842204
1070650472
1136975822
121b7b1834
1311838919
149551384
156308717
hex4360a68

70650472 has 8 divisors (see below), whose sum is σ = 132469650. Its totient is φ = 35325232.

The previous prime is 70650451. The next prime is 70650473. The reversal of 70650472 is 27405607.

It can be written as a sum of positive squares in only one way, i.e., 48804196 + 21846276 = 6986^2 + 4674^2 .

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

It is not an unprimeable number, because it can be changed into a prime (70650473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4415647 + ... + 4415662.

Almost surely, 270650472 is an apocalyptic number.

It is an amenable number.

70650472 is a deficient number, since it is larger than the sum of its proper divisors (61819178).

70650472 is a wasteful number, since it uses less digits than its factorization.

70650472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8831315 (or 8831311 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 70650472 is about 8405.3835129636. The cubic root of 70650472 is about 413.4011583692.

The spelling of 70650472 in words is "seventy million, six hundred fifty thousand, four hundred seventy-two".

Divisors: 1 2 4 8 8831309 17662618 35325236 70650472