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132021031 = 177765943
BaseRepresentation
bin1111101111001…
…11101100100111
3100012102100210211
413313213230213
5232244133111
621033400251
73162105652
oct767475447
9305370724
10132021031
116858239a
1238269087
132147566c
1413768899
15b8cc521
hex7de7b27

132021031 has 4 divisors (see below), whose sum is σ = 139786992. Its totient is φ = 124255072.

The previous prime is 132021017. The next prime is 132021037. The reversal of 132021031 is 130120231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 132021031 - 29 = 132020519 is a prime.

It is a super-2 number, since 2×1320210312 = 34859105252605922, which 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 (132021037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3882955 + ... + 3882988.

It is an arithmetic number, because the mean of its divisors is an integer number (34946748).

Almost surely, 2132021031 is an apocalyptic number.

132021031 is a deficient number, since it is larger than the sum of its proper divisors (7765961).

132021031 is an equidigital number, since it uses as much as digits as its factorization.

132021031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7765960.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 132021031 is about 11490.0405134186. The cubic root of 132021031 is about 509.1913765279.

Adding to 132021031 its reverse (130120231), we get a palindrome (262141262).

The spelling of 132021031 in words is "one hundred thirty-two million, twenty-one thousand, thirty-one".

Divisors: 1 17 7765943 132021031