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672540231253 = 112912911633057
BaseRepresentation
bin10011100100101101000…
…01011000011001010101
32101021221111002121112211
421302112201120121111
542004330244400003
61232543303113421
766406113433462
oct11622641303125
92337844077484
10672540231253
1123a24a477a40
12aa414442871
134b56044c177
14247a03c0669
15127634a496d
hex9c96858655

672540231253 has 16 divisors (see below), whose sum is σ = 759567936960. Its totient is φ = 589859827200.

The previous prime is 672540231229. The next prime is 672540231287. The reversal of 672540231253 is 352132045276.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-672540231253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672540231353) 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, 404700 + ... + 1228357.

It is an arithmetic number, because the mean of its divisors is an integer number (47472996060).

Almost surely, 2672540231253 is an apocalyptic number.

It is an amenable number.

672540231253 is a deficient number, since it is larger than the sum of its proper divisors (87027705707).

672540231253 is a wasteful number, since it uses less digits than its factorization.

672540231253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634388.

The product of its (nonzero) digits is 302400, while the sum is 40.

It can be divided in two parts, 67254023 and 1253, that added together give a palindrome (67255276).

The spelling of 672540231253 in words is "six hundred seventy-two billion, five hundred forty million, two hundred thirty-one thousand, two hundred fifty-three".

Divisors: 1 11 29 319 1291 14201 37439 411829 1633057 17963627 47358653 520945183 2108276587 23191042457 61140021023 672540231253