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70725038 = 2271130489
BaseRepresentation
bin1000011011100…
…10110110101110
311221002012111212
410031302312232
5121101200123
611003514422
71516103306
oct415626656
9157065455
1070725038
1136a1684a
121b828a12
1311863847
149570606
156320878
hex4372dae

70725038 has 8 divisors (see below), whose sum is σ = 106479840. Its totient is φ = 35231760.

The previous prime is 70725037. The next prime is 70725059. The reversal of 70725038 is 83052707.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 70724995 and 70725013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70725037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64703 + ... + 65786.

It is an arithmetic number, because the mean of its divisors is an integer number (13309980).

Almost surely, 270725038 is an apocalyptic number.

70725038 is a deficient number, since it is larger than the sum of its proper divisors (35754802).

70725038 is a wasteful number, since it uses less digits than its factorization.

70725038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130762.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 70725038 is about 8409.8179528454. The cubic root of 70725038 is about 413.5465446705.

The spelling of 70725038 in words is "seventy million, seven hundred twenty-five thousand, thirty-eight".

Divisors: 1 2 271 542 130489 260978 35362519 70725038