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30801012 = 22311233341
BaseRepresentation
bin111010101111…
…1110001110100
32010221212001020
41311133301310
530341113022
63020101140
7522542604
oct165376164
963855036
1030801012
1116428290
12a3947b0
1364c5768
14413ac04
152a8635c
hex1d5fc74

30801012 has 24 divisors (see below), whose sum is σ = 78402912. Its totient is φ = 9333600.

The previous prime is 30800993. The next prime is 30801037. The reversal of 30801012 is 21010803.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30800982 and 30801000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116539 + ... + 116802.

It is an arithmetic number, because the mean of its divisors is an integer number (3266788).

Almost surely, 230801012 is an apocalyptic number.

It is an amenable number.

30801012 is an abundant number, since it is smaller than the sum of its proper divisors (47601900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30801012 is a wasteful number, since it uses less digits than its factorization.

30801012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233359 (or 233357 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 30801012 is about 5549.8659443269. The cubic root of 30801012 is about 313.4644745553.

Adding to 30801012 its reverse (21010803), we get a palindrome (51811815).

The spelling of 30801012 in words is "thirty million, eight hundred one thousand, twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 233341 466682 700023 933364 1400046 2566751 2800092 5133502 7700253 10267004 15400506 30801012