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31300003230 = 2351043333441
BaseRepresentation
bin11101001001101000…
…000010010110011110
32222210100110220112220
4131021220002112132
51003100300100410
622213511410210
72155433431506
oct351150022636
988710426486
1031300003230
1112302043771
126096383966
132c4a801692
14172cd6aa06
15c32d1a070
hex749a0259e

31300003230 has 16 divisors (see below), whose sum is σ = 75120007824. Its totient is φ = 8346667520.

The previous prime is 31300003199. The next prime is 31300003243. The reversal of 31300003230 is 3230000313.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

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, 521666691 + ... + 521666750.

It is an arithmetic number, because the mean of its divisors is an integer number (4695000489).

Almost surely, 231300003230 is an apocalyptic number.

31300003230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31300003230 is an abundant number, since it is smaller than the sum of its proper divisors (43820004594).

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

31300003230 is a wasteful number, since it uses less digits than its factorization.

31300003230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043333451.

The product of its (nonzero) digits is 162, while the sum is 15.

Adding to 31300003230 its reverse (3230000313), we get a palindrome (34530003543).

The spelling of 31300003230 in words is "thirty-one billion, three hundred million, three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1043333441 2086666882 3130000323 5216667205 6260000646 10433334410 15650001615 31300003230