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76946401 = 710992343
BaseRepresentation
bin1001001011000…
…01101111100001
312100210021121201
410211201233201
5124144241101
611345121201
71623014350
oct445415741
9170707551
1076946401
113a485a74
1221929201
1312c3151c
14a30d997
156b4de01
hex4961be1

76946401 has 4 divisors (see below), whose sum is σ = 87938752. Its totient is φ = 65954052.

The previous prime is 76946377. The next prime is 76946449. The reversal of 76946401 is 10464967.

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: 10464967 = 21149597.

It is a cyclic number.

It is not a de Polignac number, because 76946401 - 211 = 76944353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76946101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5496165 + ... + 5496178.

It is an arithmetic number, because the mean of its divisors is an integer number (21984688).

Almost surely, 276946401 is an apocalyptic number.

It is an amenable number.

76946401 is a deficient number, since it is larger than the sum of its proper divisors (10992351).

76946401 is a wasteful number, since it uses less digits than its factorization.

76946401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10992350.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 76946401 is about 8771.9097692578. The cubic root of 76946401 is about 425.3333504622. Note that the first 4 decimals are identical.

The spelling of 76946401 in words is "seventy-six million, nine hundred forty-six thousand, four hundred one".

Divisors: 1 7 10992343 76946401