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1320515161442 = 25571185381653
BaseRepresentation
bin10011001101110100110…
…101100100110101100010
311200020110222020122010022
4103031310311210311202
5133113403340131232
62450345234433442
7164255411446601
oct23156465446542
94606428218108
101320515161442
1146a033423674
12193b11a32882
13976a7435119
1447cb0051a38
152453a001812
hex13374d64d62

1320515161442 has 8 divisors (see below), whose sum is σ = 1984328888796. Its totient is φ = 659072198512.

The previous prime is 1320515161337. The next prime is 1320515161447. The reversal of 1320515161442 is 2441615150231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1319417498281 + 1097663161 = 1148659^2 + 33131^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1320515161447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592689713 + ... + 592691940.

Almost surely, 21320515161442 is an apocalyptic number.

1320515161442 is a deficient number, since it is larger than the sum of its proper divisors (663813727354).

1320515161442 is a wasteful number, since it uses less digits than its factorization.

1320515161442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185382212.

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 1320515161442 in words is "one trillion, three hundred twenty billion, five hundred fifteen million, one hundred sixty-one thousand, four hundred forty-two".

Divisors: 1 2 557 1114 1185381653 2370763306 660257580721 1320515161442