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71480148782 = 2727971825429
BaseRepresentation
bin100001010010010001…
…1001000001100101110
320211111120111210021212
41002210203020030232
52132342404230112
652500523354422
75110226145140
oct1024443101456
9224446453255
1071480148782
1128350753829
1211a2a682a12
136981ca9133
14366142cc90
151cd5538522
hex10a48c832e

71480148782 has 16 divisors (see below), whose sum is σ = 122581275360. Its totient is φ = 30623380128.

The previous prime is 71480148757. The next prime is 71480148787. The reversal of 71480148782 is 28784108417.

It is a super-3 number, since 3×714801487823 (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71480148782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71480148787) 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, 873557 + ... + 951872.

It is an arithmetic number, because the mean of its divisors is an integer number (7661329710).

Almost surely, 271480148782 is an apocalyptic number.

71480148782 is a deficient number, since it is larger than the sum of its proper divisors (51101126578).

71480148782 is a wasteful number, since it uses less digits than its factorization.

71480148782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828235.

The product of its (nonzero) digits is 802816, while the sum is 50.

The spelling of 71480148782 in words is "seventy-one billion, four hundred eighty million, one hundred forty-eight thousand, seven hundred eighty-two".

Divisors: 1 2 7 14 2797 5594 19579 39158 1825429 3650858 12778003 25556006 5105724913 10211449826 35740074391 71480148782