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26680470557740 = 2254992726719481
BaseRepresentation
bin1100001000100000001111…
…11110000101010000101100
310111110121221212101222220121
412010100013332011100230
511444113100430321430
6132424501114454324
75422412634603136
oct604200776052054
9114417855358817
1026680470557740
11855714008705a
122baaa2b7343a4
1311b6c5aa4ca6c
146834ad75a056
15314048609a7a
hex184407f8542c

26680470557740 has 24 divisors (see below), whose sum is σ = 56030112486432. Its totient is φ = 10671974067840.

The previous prime is 26680470557737. The next prime is 26680470557753. The reversal of 26680470557740 is 4775507408662.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12361201 + ... + 14358280.

It is an arithmetic number, because the mean of its divisors is an integer number (2334588020268).

Almost surely, 226680470557740 is an apocalyptic number.

26680470557740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26680470557740 is an abundant number, since it is smaller than the sum of its proper divisors (29349641928692).

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

26680470557740 is a wasteful number, since it uses less digits than its factorization.

26680470557740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26769417 (or 26769415 counting only the distinct ones).

The product of its (nonzero) digits is 79027200, while the sum is 61.

The spelling of 26680470557740 in words is "twenty-six trillion, six hundred eighty billion, four hundred seventy million, five hundred fifty-seven thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 49927 99854 199708 249635 499270 998540 26719481 53438962 106877924 133597405 267194810 534389620 1334023527887 2668047055774 5336094111548 6670117639435 13340235278870 26680470557740