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30486236 = 22111753769
BaseRepresentation
bin111010001001…
…0111011011100
32010100212020212
41310102323130
530301024421
63005231552
7520062104
oct164227334
963325225
1030486236
1116232840
12a2625b8
1364153c1
144098204
152a22e5b
hex1d12edc

30486236 has 48 divisors (see below), whose sum is σ = 62868960. Its totient is φ = 12779520.

The previous prime is 30486217. The next prime is 30486251. The reversal of 30486236 is 63268403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39260 + ... + 40028.

It is an arithmetic number, because the mean of its divisors is an integer number (1309770).

Almost surely, 230486236 is an apocalyptic number.

It is an amenable number.

30486236 is an abundant number, since it is smaller than the sum of its proper divisors (32382724).

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

30486236 is a wasteful number, since it uses less digits than its factorization.

30486236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 30486236 is about 5521.4342339649. The cubic root of 30486236 is about 312.3929822352.

The spelling of 30486236 in words is "thirty million, four hundred eighty-six thousand, two hundred thirty-six".

Divisors: 1 2 4 11 17 22 34 44 53 68 106 187 212 374 583 748 769 901 1166 1538 1802 2332 3076 3604 8459 9911 13073 16918 19822 26146 33836 39644 40757 52292 81514 143803 163028 287606 448327 575212 692869 896654 1385738 1793308 2771476 7621559 15243118 30486236