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30538565233 = 1119523727901
BaseRepresentation
bin11100011100001111…
…011000011001110001
32220211021200211222121
4130130033120121301
51000020333041413
622010151234241
72130526343611
oct343417303161
986737624877
1030538565233
1111a51251070
125b03378981
132b58b30957
141699b9ca41
15bdb05db8d
hex71c3d8671

30538565233 has 16 divisors (see below), whose sum is σ = 35076162240. Its totient is φ = 26295192000.

The previous prime is 30538565203. The next prime is 30538565249. The reversal of 30538565233 is 33256583503.

It is not a de Polignac number, because 30538565233 - 213 = 30538557041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30538565233.

It is not an unprimeable number, because it can be changed into a prime (30538565203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1080583 + ... + 1108483.

It is an arithmetic number, because the mean of its divisors is an integer number (2192260140).

Almost surely, 230538565233 is an apocalyptic number.

It is an amenable number.

30538565233 is a deficient number, since it is larger than the sum of its proper divisors (4537597007).

30538565233 is a wasteful number, since it uses less digits than its factorization.

30538565233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33168.

The product of its (nonzero) digits is 972000, while the sum is 43.

The spelling of 30538565233 in words is "thirty billion, five hundred thirty-eight million, five hundred sixty-five thousand, two hundred thirty-three".

Divisors: 1 11 19 209 5237 27901 57607 99503 306911 530119 1094533 5831309 146117537 1607292907 2776233203 30538565233