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71482057740 = 2234544124727
BaseRepresentation
bin100001010010010101…
…0011010010000001100
320211111201002202220000
41002210222122100030
52132343401321430
652501032324300
75110251315462
oct1024452322014
9224451082800
1071482057740
1128351837a85
1211a2b243690
1369824c6cb2
1436617a8832
151cd57b3e60
hex10a4a9a40c

71482057740 has 60 divisors (see below), whose sum is σ = 224241867696. Its totient is φ = 19061881632.

The previous prime is 71482057739. The next prime is 71482057741. The reversal of 71482057740 is 4775028417.

71482057740 is a `hidden beast` number, since 7 + 14 + 8 + 20 + 577 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (71482057739) and next prime (71482057741).

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (71482057741) 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 19 ways as a sum of consecutive naturals, for example, 22060744 + ... + 22063983.

Almost surely, 271482057740 is an apocalyptic number.

It is an amenable number.

71482057740 is an abundant number, since it is smaller than the sum of its proper divisors (152759809956).

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

71482057740 is a wasteful number, since it uses less digits than its factorization.

71482057740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44124748 (or 44124737 counting only the distinct ones).

The product of its (nonzero) digits is 439040, while the sum is 45.

The spelling of 71482057740 in words is "seventy-one billion, four hundred eighty-two million, fifty-seven thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 135 162 180 270 324 405 540 810 1620 44124727 88249454 132374181 176498908 220623635 264748362 397122543 441247270 529496724 661870905 794245086 882494540 1191367629 1323741810 1588490172 1985612715 2382735258 2647483620 3574102887 3971225430 4765470516 5956838145 7148205774 7942450860 11913676290 14296411548 17870514435 23827352580 35741028870 71482057740