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70393901 = 312270771
BaseRepresentation
bin1000011001000…
…10000000101101
311220110101021112
410030202000231
5121010101101
610552441405
71513224014
oct414420055
9156411245
1070393901
113680aa86
121b6a9265
1311778bc6
1494c5a7b
1562a76bb
hex432202d

70393901 has 4 divisors (see below), whose sum is σ = 72664704. Its totient is φ = 68123100.

The previous prime is 70393891. The next prime is 70393907. The reversal of 70393901 is 10939307.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10939307 = 19575753.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-70393901 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 (70393907) 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, 1135355 + ... + 1135416.

It is an arithmetic number, because the mean of its divisors is an integer number (18166176).

Almost surely, 270393901 is an apocalyptic number.

It is an amenable number.

70393901 is a deficient number, since it is larger than the sum of its proper divisors (2270803).

70393901 is a wasteful number, since it uses less digits than its factorization.

70393901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2270802.

The product of its (nonzero) digits is 5103, while the sum is 32.

The square root of 70393901 is about 8390.1073294684. The cubic root of 70393901 is about 412.9001218298.

The spelling of 70393901 in words is "seventy million, three hundred ninety-three thousand, nine hundred one".

Divisors: 1 31 2270771 70393901