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1012552331 = 71271138979
BaseRepresentation
bin111100010110100…
…101001010001011
32121120021222200012
4330112211022023
54033203133311
6244250302135
734043360420
oct7426451213
92546258605
101012552331
1147a61760a
1224312794b
13131a136bb
1498697d47
155dd6078b
hex3c5a528b

1012552331 has 8 divisors (see below), whose sum is σ = 1166315520. Its totient is φ = 861067368.

The previous prime is 1012552327. The next prime is 1012552357. The reversal of 1012552331 is 1332552101.

It is a happy number.

1012552331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1012552331 - 22 = 1012552327 is a prime.

It is a super-2 number, since 2×10125523312 = 2050524446027067122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012552297 and 1012552306.

It is not an unprimeable number, because it can be changed into a prime (1012552301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568601 + ... + 570378.

It is an arithmetic number, because the mean of its divisors is an integer number (145789440).

Almost surely, 21012552331 is an apocalyptic number.

1012552331 is a deficient number, since it is larger than the sum of its proper divisors (153763189).

1012552331 is a wasteful number, since it uses less digits than its factorization.

1012552331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139113.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1012552331 is about 31820.6274451023. The cubic root of 1012552331 is about 1004.1667246256.

The spelling of 1012552331 in words is "one billion, twelve million, five hundred fifty-two thousand, three hundred thirty-one".

Divisors: 1 7 127 889 1138979 7972853 144650333 1012552331