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30637253472 = 2537352912919
BaseRepresentation
bin11100100010000111…
…110110001101100000
32221002011101201210120
4130202013312031200
51000221114102342
622024034400240
72133135233460
oct344207661540
987064351716
1030637253472
1111aa1a26aa1
125b30430080
132b73405367
1416a8d2bba0
15be4a54aec
hex7221f6360

30637253472 has 96 divisors (see below), whose sum is σ = 91944921600. Its totient is φ = 8750343168.

The previous prime is 30637253429. The next prime is 30637253473. The reversal of 30637253472 is 27435273603.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30637253473) 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, 2365029 + ... + 2377947.

It is an arithmetic number, because the mean of its divisors is an integer number (957759600).

Almost surely, 230637253472 is an apocalyptic number.

30637253472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30637253472 is an abundant number, since it is smaller than the sum of its proper divisors (61307668128).

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

30637253472 is a wasteful number, since it uses less digits than its factorization.

30637253472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16468 (or 16460 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 42.

The spelling of 30637253472 in words is "thirty billion, six hundred thirty-seven million, two hundred fifty-three thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 672 3529 7058 10587 12919 14116 21174 24703 25838 28232 38757 42348 49406 51676 56464 74109 77514 84696 90433 98812 103352 112928 148218 155028 169392 180866 197624 206704 271299 296436 310056 338784 361732 395248 413408 542598 592872 620112 723464 790496 1085196 1185744 1240224 1446928 2170392 2371488 2893856 4340784 8681568 45591151 91182302 136773453 182364604 273546906 319138057 364729208 547093812 638276114 729458416 957414171 1094187624 1276552228 1458916832 1914828342 2188375248 2553104456 3829656684 4376750496 5106208912 7659313368 10212417824 15318626736 30637253472