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1031420652 = 22385951721
BaseRepresentation
bin111101011110100…
…011101011101100
32122212210121010220
4331132203223230
54103020430102
6250202531340
734362634203
oct7536435354
92585717126
101031420652
1148a234669
12249506b50
131358bb9a2
149adaa23a
156083b1bc
hex3d7a3aec

1031420652 has 12 divisors (see below), whose sum is σ = 2406648216. Its totient is φ = 343806880.

The previous prime is 1031420639. The next prime is 1031420659. The reversal of 1031420652 is 2560241301.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×10314206522 = 2127657122744210208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1031420659) 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, 42975849 + ... + 42975872.

It is an arithmetic number, because the mean of its divisors is an integer number (200554018).

Almost surely, 21031420652 is an apocalyptic number.

1031420652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1031420652 is an abundant number, since it is smaller than the sum of its proper divisors (1375227564).

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

1031420652 is a wasteful number, since it uses less digits than its factorization.

1031420652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85951728 (or 85951726 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1031420652 is about 32115.7383847857. The cubic root of 1031420652 is about 1010.3657310266.

Adding to 1031420652 its reverse (2560241301), we get a palindrome (3591661953).

The spelling of 1031420652 in words is "one billion, thirty-one million, four hundred twenty thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 85951721 171903442 257855163 343806884 515710326 1031420652