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1392960243 = 31928386353
BaseRepresentation
bin101001100000110…
…1110001011110011
310121002002201020010
41103001232023303
510323044211433
6350115550003
746342652403
oct12301561363
93532081203
101392960243
11655320714
1232a5bb303
1319278543c
14d2ddc803
1582453e63
hex5306e2f3

1392960243 has 16 divisors (see below), whose sum is σ = 1961962880. Its totient is φ = 876645504.

The previous prime is 1392960227. The next prime is 1392960259. The reversal of 1392960243 is 3420692931.

It is an interprime number because it is at equal distance from previous prime (1392960227) and next prime (1392960259).

It is not a de Polignac number, because 1392960243 - 24 = 1392960227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1392960043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27046 + ... + 59307.

It is an arithmetic number, because the mean of its divisors is an integer number (122622680).

Almost surely, 21392960243 is an apocalyptic number.

1392960243 is a deficient number, since it is larger than the sum of its proper divisors (569002637).

1392960243 is a wasteful number, since it uses less digits than its factorization.

1392960243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86658.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 1392960243 is about 37322.3826007933. The cubic root of 1392960243 is about 1116.8107193780.

The spelling of 1392960243 in words is "one billion, three hundred ninety-two million, nine hundred sixty thousand, two hundred forty-three".

Divisors: 1 3 19 57 283 849 5377 16131 86353 259059 1640707 4922121 24437899 73313697 464320081 1392960243