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245340430425 = 325217253257277
BaseRepresentation
bin1110010001111101101…
…1011110000001011001
3212110021012022012022100
43210133123132001121
513004424122233200
6304412520514013
723503523151546
oct3443733360131
9773235265270
10245340430425
1195059305702
123b67001b909
131a19b91582c
14bc35a49bcd
1565adc0ad00
hex391f6de059

245340430425 has 216 divisors, whose sum is σ = 479183310216. Its totient is φ = 119923015680.

The previous prime is 245340430411. The next prime is 245340430441. The reversal of 245340430425 is 524034043542.

245340430425 is a `hidden beast` number, since 2 + 4 + 5 + 340 + 4 + 304 + 2 + 5 = 666.

It can be written as a sum of positive squares in 36 ways, for example, as 116077171401 + 129263259024 = 340701^2 + 359532^2 .

It is not a de Polignac number, because 245340430425 - 27 = 245340430297 is a prime.

It is a super-2 number, since 2×2453404304252 (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 245340430425.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 885705387 + ... + 885705663.

It is an arithmetic number, because the mean of its divisors is an integer number (2218441251).

Almost surely, 2245340430425 is an apocalyptic number.

245340430425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

245340430425 is a deficient number, since it is larger than the sum of its proper divisors (233842879791).

245340430425 is a wasteful number, since it uses less digits than its factorization.

245340430425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 36.

Adding to 245340430425 its reverse (524034043542), we get a palindrome (769374473967).

The spelling of 245340430425 in words is "two hundred forty-five billion, three hundred forty million, four hundred thirty thousand, four hundred twenty-five".