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1390807315 = 517194773251
BaseRepresentation
bin101001011100110…
…0000100100010011
310120221001022222001
41102321200210103
510322021313230
6350001454431
746315444552
oct12271404423
93527038861
101390807315
11654090137
12329941417
131921b0511
14d29dbd99
158217b0ca
hex52e60913

1390807315 has 64 divisors (see below), whose sum is σ = 1933424640. Its totient is φ = 953856000.

The previous prime is 1390807307. The next prime is 1390807333. The reversal of 1390807315 is 5137080931.

It is a happy number.

It is not a de Polignac number, because 1390807315 - 23 = 1390807307 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5540940 + ... + 5541190.

It is an arithmetic number, because the mean of its divisors is an integer number (30209760).

Almost surely, 21390807315 is an apocalyptic number.

1390807315 is a deficient number, since it is larger than the sum of its proper divisors (542617325).

1390807315 is a wasteful number, since it uses less digits than its factorization.

1390807315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 1390807315 is about 37293.5291304001. The cubic root of 1390807315 is about 1116.2350501917.

The spelling of 1390807315 in words is "one billion, three hundred ninety million, eight hundred seven thousand, three hundred fifteen".

Divisors: 1 5 17 19 47 73 85 95 235 251 323 365 799 893 1241 1255 1387 1615 3431 3995 4267 4465 4769 6205 6935 11797 15181 17155 18323 21335 23579 23845 58327 58985 65189 75905 81073 91615 117895 200549 224143 291635 311491 325945 348137 405365 861181 1002745 1108213 1120715 1557455 1740685 3810431 4305905 5541065 5918329 14640077 16362439 19052155 29591645 73200385 81812195 278161463 1390807315