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30756750204 = 2232563062517
BaseRepresentation
bin11100101001001111…
…101100001101111100
32221101111020210111110
4130221033230031330
51000442212001304
622043543522020
72136116030445
oct345117541574
987344223443
1030756750204
1112053424724
125b64459310
132b920b419b
1416bab562cc
15c002ab289
hex7293ec37c

30756750204 has 12 divisors (see below), whose sum is σ = 71765750504. Its totient is φ = 10252250064.

The previous prime is 30756750181. The next prime is 30756750229. The reversal of 30756750204 is 40205765703.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×307567502042 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1281531247 + ... + 1281531270.

Almost surely, 230756750204 is an apocalyptic number.

It is an amenable number.

30756750204 is an abundant number, since it is smaller than the sum of its proper divisors (41009000300).

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

30756750204 is a wasteful number, since it uses less digits than its factorization.

30756750204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2563062524 (or 2563062522 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 39.

The spelling of 30756750204 in words is "thirty billion, seven hundred fifty-six million, seven hundred fifty thousand, two hundred four".

Divisors: 1 2 3 4 6 12 2563062517 5126125034 7689187551 10252250068 15378375102 30756750204