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38061556480 = 28533718821
BaseRepresentation
bin100011011100101001…
…010100001100000000
310122020120112101220001
4203130221110030000
51110422224301410
625252451125344
72515125614653
oct433451241400
9118216471801
1038061556480
1115161835802
1274628a3854
1337875ab76c
141bb0d7789a
15ecb73333a
hex8dca54300

38061556480 has 72 divisors (see below), whose sum is σ = 91206705744. Its totient is φ = 15218380800.

The previous prime is 38061556459. The next prime is 38061556487. The reversal of 38061556480 is 8465516083.

It is a self number, because there is not a number n which added to its sum of digits gives 38061556480.

It is not an unprimeable number, because it can be changed into a prime (38061556487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4310470 + ... + 4319290.

It is an arithmetic number, because the mean of its divisors is an integer number (1266759802).

Almost surely, 238061556480 is an apocalyptic number.

It is an amenable number.

38061556480 is an abundant number, since it is smaller than the sum of its proper divisors (53145149264).

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

38061556480 is an equidigital number, since it uses as much as digits as its factorization.

38061556480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12213 (or 12199 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 38061556480 in words is "thirty-eight billion, sixty-one million, five hundred fifty-six thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1280 3371 6742 8821 13484 16855 17642 26968 33710 35284 44105 53936 67420 70568 88210 107872 134840 141136 176420 215744 269680 282272 352840 431488 539360 564544 705680 862976 1078720 1129088 1411360 2157440 2258176 2822720 4314880 5645440 11290880 29735591 59471182 118942364 148677955 237884728 297355910 475769456 594711820 951538912 1189423640 1903077824 2378847280 3806155648 4757694560 7612311296 9515389120 19030778240 38061556480