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31030414532 = 2213718404771
BaseRepresentation
bin11100111001100011…
…101000110011000100
32222002120012101101022
4130321203220303010
51002022241231112
622131041250312
72145651112565
oct347143506304
988076171338
1031030414532
1112183950797
126020033998
132c069c0b40
14170523216c
15c19316d72
hex7398e8cc4

31030414532 has 24 divisors (see below), whose sum is σ = 59304071232. Its totient is φ = 14120013600.

The previous prime is 31030414529. The next prime is 31030414537. The reversal of 31030414532 is 23541403013.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (31030414537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4198694 + ... + 4206077.

It is an arithmetic number, because the mean of its divisors is an integer number (2471002968).

Almost surely, 231030414532 is an apocalyptic number.

It is an amenable number.

31030414532 is a deficient number, since it is larger than the sum of its proper divisors (28273656700).

31030414532 is a wasteful number, since it uses less digits than its factorization.

31030414532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8404859 (or 8404857 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 31030414532 its reverse (23541403013), we get a palindrome (54571817545).

The spelling of 31030414532 in words is "thirty-one billion, thirty million, four hundred fourteen thousand, five hundred thirty-two".

Divisors: 1 2 4 13 26 52 71 142 284 923 1846 3692 8404771 16809542 33619084 109262023 218524046 437048092 596738741 1193477482 2386954964 7757603633 15515207266 31030414532