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13918252844 = 2223157963601
BaseRepresentation
bin11001111011001011…
…11010111100101100
31022220222122111120002
430331211322330230
5212001033042334
610221032243432
71001623124426
oct147545727454
938828574502
1013918252844
1159a2544401
122845240578
13140a6b9492
149606b7816
15566d86b7e
hex33d97af2c

13918252844 has 24 divisors (see below), whose sum is σ = 25577851488. Its totient is φ = 6614150400.

The previous prime is 13918252823. The next prime is 13918252847. The reversal of 13918252844 is 44825281931.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13918252847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467357 + ... + 496244.

It is an arithmetic number, because the mean of its divisors is an integer number (1065743812).

Almost surely, 213918252844 is an apocalyptic number.

It is an amenable number.

13918252844 is a deficient number, since it is larger than the sum of its proper divisors (11659598644).

13918252844 is a wasteful number, since it uses less digits than its factorization.

13918252844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963785 (or 963783 counting only the distinct ones).

The product of its digits is 552960, while the sum is 47.

The spelling of 13918252844 in words is "thirteen billion, nine hundred eighteen million, two hundred fifty-two thousand, eight hundred forty-four".

Divisors: 1 2 4 23 46 92 157 314 628 3611 7222 14444 963601 1927202 3854404 22162823 44325646 88651292 151285357 302570714 605141428 3479563211 6959126422 13918252844