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245374025442 = 23713449402977
BaseRepresentation
bin1110010010000101101…
…1100111111011100010
3212110100112112000000020
43210201123213323202
513010011222303232
6304420120534310
723504411542320
oct3444133477342
9773315460006
10245374025442
1195076271087
123b67b321396
131a1a5878c40
14bc3a2b2d10
1565b1b44e2c
hex39216e7ee2

245374025442 has 32 divisors (see below), whose sum is σ = 603997602432. Its totient is φ = 64714028544.

The previous prime is 245374025423. The next prime is 245374025443. The reversal of 245374025442 is 244520473542.

It is a super-2 number, since 2×2453740254422 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 245374025394 and 245374025403.

It is not an unprimeable number, because it can be changed into a prime (245374025443) 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, 224700943 + ... + 224702034.

It is an arithmetic number, because the mean of its divisors is an integer number (18874925076).

Almost surely, 2245374025442 is an apocalyptic number.

245374025442 is an abundant number, since it is smaller than the sum of its proper divisors (358623576990).

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

245374025442 is a wasteful number, since it uses less digits than its factorization.

245374025442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449403002.

The product of its (nonzero) digits is 1075200, while the sum is 42.

Adding to 245374025442 its reverse (244520473542), we get a palindrome (489894498984).

The spelling of 245374025442 in words is "two hundred forty-five billion, three hundred seventy-four million, twenty-five thousand, four hundred forty-two".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 78 91 182 273 546 449402977 898805954 1348208931 2696417862 3145820839 5842238701 6291641678 9437462517 11684477402 17526716103 18874925034 35053432206 40895670907 81791341814 122687012721 245374025442