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70401169 = 91177279
BaseRepresentation
bin1000011001000…
…11110010010001
311220110202020201
410030203302101
5121010314134
610552535201
71513254136
oct414436221
9156422221
1070401169
1136815493
121b6b1501
131177c2c7
1494c858d
1562a9914
hex4323c91

70401169 has 4 divisors (see below), whose sum is σ = 70479360. Its totient is φ = 70322980.

The previous prime is 70401157. The next prime is 70401173. The reversal of 70401169 is 96110407.

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 not a de Polignac number, because 70401169 - 29 = 70400657 is a prime.

It is a super-2 number, since 2×704011692 = 9912649193133122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70401109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37729 + ... + 39550.

It is an arithmetic number, because the mean of its divisors is an integer number (17619840).

Almost surely, 270401169 is an apocalyptic number.

It is an amenable number.

70401169 is a deficient number, since it is larger than the sum of its proper divisors (78191).

70401169 is an equidigital number, since it uses as much as digits as its factorization.

70401169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78190.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 70401169 is about 8390.5404474325. The cubic root of 70401169 is about 412.9143316537.

The spelling of 70401169 in words is "seventy million, four hundred one thousand, one hundred sixty-nine".

Divisors: 1 911 77279 70401169