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70712154 = 2323928453
BaseRepresentation
bin1000011011011…
…11101101011010
311221001112211200
410031233231122
5121100242104
611003335030
71516020612
oct415575532
9157045750
1070712154
1136a080a7
121b821476
131185aa16
149569a42
15631bb39
hex436fb5a

70712154 has 12 divisors (see below), whose sum is σ = 153209706. Its totient is φ = 23570712.

The previous prime is 70712153. The next prime is 70712183. The reversal of 70712154 is 45121707.

It can be written as a sum of positive squares in only one way, i.e., 47238129 + 23474025 = 6873^2 + 4845^2 .

It is not an unprimeable number, because it can be changed into a prime (70712153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1964209 + ... + 1964244.

Almost surely, 270712154 is an apocalyptic number.

70712154 is an abundant number, since it is smaller than the sum of its proper divisors (82497552).

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

70712154 is a wasteful number, since it uses less digits than its factorization.

70712154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3928461 (or 3928458 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 70712154 is about 8409.0519085091. The cubic root of 70712154 is about 413.5214311822.

The spelling of 70712154 in words is "seventy million, seven hundred twelve thousand, one hundred fifty-four".

Divisors: 1 2 3 6 9 18 3928453 7856906 11785359 23570718 35356077 70712154