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1072242451 = 7223951413
BaseRepresentation
bin111111111010010…
…001111100010011
32202201121120010101
4333322101330103
54143443224301
6254221513231
735366624200
oct7772217423
92681546111
101072242451
11500286695
1225b112817
131411b25b7
14a2594ca7
1564201701
hex3fe91f13

1072242451 has 12 divisors (see below), whose sum is σ = 1301534352. Its totient is φ = 879104688.

The previous prime is 1072242439. The next prime is 1072242481. The reversal of 1072242451 is 1542422701.

It is not a de Polignac number, because 1072242451 - 29 = 1072241939 is a prime.

It is a super-2 number, since 2×10722424512 = 2299407747452974802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1072242401) 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 11 ways as a sum of consecutive naturals, for example, 474580 + ... + 476833.

It is an arithmetic number, because the mean of its divisors is an integer number (108461196).

Almost surely, 21072242451 is an apocalyptic number.

1072242451 is a deficient number, since it is larger than the sum of its proper divisors (229291901).

1072242451 is an equidigital number, since it uses as much as digits as its factorization.

1072242451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951450 (or 951443 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 1072242451 is about 32745.1133911611. The cubic root of 1072242451 is about 1023.5231401284.

The spelling of 1072242451 in words is "one billion, seventy-two million, two hundred forty-two thousand, four hundred fifty-one".

Divisors: 1 7 23 49 161 1127 951413 6659891 21882499 46619237 153177493 1072242451