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30767013 = 331139519
BaseRepresentation
bin111010101011…
…1011110100101
32010220010102000
41311113132211
530334021023
63015235513
7522341514
oct165273645
963803360
1030767013
1116404792
12a378b99
1364b3144
14412c67b
152a7b243
hex1d577a5

30767013 has 8 divisors (see below), whose sum is σ = 45580800. Its totient is φ = 20511324.

The previous prime is 30766979. The next prime is 30767029. The reversal of 30767013 is 31076703.

It is not a de Polignac number, because 30767013 - 26 = 30766949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1139519 = 30767013 / (3 + 0 + 7 + 6 + 7 + 0 + 1 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30767063) 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, 569733 + ... + 569786.

It is an arithmetic number, because the mean of its divisors is an integer number (5697600).

Almost surely, 230767013 is an apocalyptic number.

It is an amenable number.

30767013 is a deficient number, since it is larger than the sum of its proper divisors (14813787).

30767013 is a wasteful number, since it uses less digits than its factorization.

30767013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139528 (or 1139522 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 27.

The square root of 30767013 is about 5546.8020516330. The cubic root of 30767013 is about 313.3490952033.

The spelling of 30767013 in words is "thirty million, seven hundred sixty-seven thousand, thirteen".

Divisors: 1 3 9 27 1139519 3418557 10255671 30767013