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70000297 = 73994723
BaseRepresentation
bin1000010110000…
…01111010101001
311212201101100121
410023001322221
5120410002142
610540203241
71506664333
oct413017251
9155641317
1070000297
1136571294
121b539521
131166b9c3
149422453
15622ac67
hex42c1ea9

70000297 has 4 divisors (see below), whose sum is σ = 70095760. Its totient is φ = 69904836.

The previous prime is 70000283. The next prime is 70000303. The reversal of 70000297 is 79200007.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-70000297 is a prime.

It is a Duffinian number.

70000297 is a modest number, since divided by 297 gives 70 as remainder.

It is not an unprimeable number, because it can be changed into a prime (70000267) 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, 46623 + ... + 48100.

It is an arithmetic number, because the mean of its divisors is an integer number (17523940).

Almost surely, 270000297 is an apocalyptic number.

It is an amenable number.

70000297 is a deficient number, since it is larger than the sum of its proper divisors (95463).

70000297 is an equidigital number, since it uses as much as digits as its factorization.

70000297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95462.

The product of its (nonzero) digits is 882, while the sum is 25.

The square root of 70000297 is about 8366.6180144668. The cubic root of 70000297 is about 412.1291128475.

The spelling of 70000297 in words is "seventy million, two hundred ninety-seven", and thus it is an aban number.

Divisors: 1 739 94723 70000297