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30756401 = 1310722111
BaseRepresentation
bin111010101010…
…0111000110001
32010212120211222
41311110320301
530333201101
63015114425
7522265544
oct165247061
963776758
1030756401
11163a7815
12a372a15
1364ab370
14412885b
152a7801b
hex1d54e31

30756401 has 8 divisors (see below), whose sum is σ = 33433344. Its totient is φ = 28123920.

The previous prime is 30756379. The next prime is 30756413. The reversal of 30756401 is 10465703.

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 30756401 - 26 = 30756337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30756491) 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 7 ways as a sum of consecutive naturals, for example, 9665 + ... + 12446.

It is an arithmetic number, because the mean of its divisors is an integer number (4179168).

Almost surely, 230756401 is an apocalyptic number.

It is an amenable number.

30756401 is a deficient number, since it is larger than the sum of its proper divisors (2676943).

30756401 is a wasteful number, since it uses less digits than its factorization.

30756401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22231.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 30756401 is about 5545.8453819053. The cubic root of 30756401 is about 313.3130648073.

The spelling of 30756401 in words is "thirty million, seven hundred fifty-six thousand, four hundred one".

Divisors: 1 13 107 1391 22111 287443 2365877 30756401