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12854022148 = 22112375031427
BaseRepresentation
bin10111111100010100…
…01101000000000100
31020011211002222111101
423332022031000010
5202311112202043
65523254145444
7633351246142
oct137612150004
936154088441
1012854022148
1154a6840100
1225a8952284
13129b080786
1489d20a592
1550371924d
hex2fe28d004

12854022148 has 72 divisors (see below), whose sum is σ = 25461971136. Its totient is φ = 5669547840.

The previous prime is 12854022127. The next prime is 12854022149. The reversal of 12854022148 is 84122045821.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (12854022149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9007011 + ... + 9008437.

It is an arithmetic number, because the mean of its divisors is an integer number (353638488).

Almost surely, 212854022148 is an apocalyptic number.

It is an amenable number.

12854022148 is a deficient number, since it is larger than the sum of its proper divisors (12607948988).

12854022148 is a wasteful number, since it uses less digits than its factorization.

12854022148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993 (or 1980 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 37.

Adding to 12854022148 its reverse (84122045821), we get a palindrome (96976067969).

The spelling of 12854022148 in words is "twelve billion, eight hundred fifty-four million, twenty-two thousand, one hundred forty-eight".

Divisors: 1 2 4 11 22 37 44 74 121 148 242 407 484 503 814 1006 1427 1628 2012 2854 4477 5533 5708 8954 11066 15697 17908 18611 22132 31394 37222 52799 60863 62788 74444 105598 121726 172667 204721 211196 243452 345334 409442 580789 690668 717781 818884 1161578 1435562 2251931 2323156 2871124 4503862 6388679 7895591 9007724 12777358 15791182 25554716 26557897 31582364 53115794 86851501 106231588 173703002 292136867 347406004 584273734 1168547468 3213505537 6427011074 12854022148