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1295068390 = 257111681907
BaseRepresentation
bin100110100110001…
…0010110011100110
310100020220021211221
41031030102303212
510123014142030
6332301450554
744043620410
oct11514226346
93306807757
101295068390
1160503a060
12301870a5a
131783cc375
14c3dd99b0
1578a68e7a
hex4d312ce6

1295068390 has 32 divisors (see below), whose sum is σ = 2906337024. Its totient is φ = 403657440.

The previous prime is 1295068373. The next prime is 1295068441. The reversal of 1295068390 is 938605921.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 840184 + ... + 841723.

It is an arithmetic number, because the mean of its divisors is an integer number (90823032).

Almost surely, 21295068390 is an apocalyptic number.

1295068390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1295068390 is an abundant number, since it is smaller than the sum of its proper divisors (1611268634).

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

1295068390 is a wasteful number, since it uses less digits than its factorization.

1295068390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681932.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 1295068390 is about 35987.0586461300. The cubic root of 1295068390 is about 1090.0110511463.

The spelling of 1295068390 in words is "one billion, two hundred ninety-five million, sixty-eight thousand, three hundred ninety".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 770 1681907 3363814 8409535 11773349 16819070 18500977 23546698 37001954 58866745 92504885 117733490 129506839 185009770 259013678 647534195 1295068390