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30002232431 = 2915124128429
BaseRepresentation
bin11011111100010001…
…011011110001101111
32212102220111022200202
4123330101123301233
5442421032414211
621441031544115
72111324524253
oct337421336157
985386438622
1030002232431
11117a6529316
12599382b03b
132aa1997272
14164886a263
15ba8e1a53b
hex6fc45bc6f

30002232431 has 16 divisors (see below), whose sum is σ = 31373073600. Its totient is φ = 28655424000.

The previous prime is 30002232391. The next prime is 30002232433. The reversal of 30002232431 is 13423220003.

It is a cyclic number.

It is not a de Polignac number, because 30002232431 - 222 = 29998038127 is a prime.

It is a super-2 number, since 2×300022324312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30002232433) 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, 1041125 + ... + 1069553.

It is an arithmetic number, because the mean of its divisors is an integer number (1960817100).

Almost surely, 230002232431 is an apocalyptic number.

30002232431 is a deficient number, since it is larger than the sum of its proper divisors (1370841169).

30002232431 is a wasteful number, since it uses less digits than its factorization.

30002232431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28850.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 30002232431 its reverse (13423220003), we get a palindrome (43425452434).

The spelling of 30002232431 in words is "thirty billion, two million, two hundred thirty-two thousand, four hundred thirty-one".

Divisors: 1 29 151 241 4379 6989 28429 36391 824441 1055339 4292779 6851389 124490591 198690281 1034559739 30002232431