Search a number
-
+
70313087 = 1318672897
BaseRepresentation
bin1000011000011…
…10010001111111
311220022021102102
410030032101333
5121000004322
610551015315
71512436265
oct414162177
9156267372
1070313087
1136765299
121b66a53b
131174b1a0
1494a4435
15628d792
hex430e47f

70313087 has 8 divisors (see below), whose sum is σ = 75788496. Its totient is φ = 64847232.

The previous prime is 70313077. The next prime is 70313099. The reversal of 70313087 is 78031307.

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

It is a cyclic number.

It is not a de Polignac number, because 70313087 - 28 = 70312831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70313027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22823 + ... + 25719.

It is an arithmetic number, because the mean of its divisors is an integer number (9473562).

Almost surely, 270313087 is an apocalyptic number.

70313087 is a deficient number, since it is larger than the sum of its proper divisors (5475409).

70313087 is a wasteful number, since it uses less digits than its factorization.

70313087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4777.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 70313087 is about 8385.2899174686. The cubic root of 70313087 is about 412.7420546901.

The spelling of 70313087 in words is "seventy million, three hundred thirteen thousand, eighty-seven".

Divisors: 1 13 1867 2897 24271 37661 5408699 70313087