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87272977948 = 22134313894029
BaseRepresentation
bin101000101000111011…
…1111111011000011100
322100021012111122010121
41101101313333120130
52412213340243243
6104032002444324
76206464033642
oct1212167773034
9270235448117
1087272977948
1134015359062
1214ab76636a4
1382cab67170
14431ca73192
15240bc5a1ed
hex1451dff61c

87272977948 has 24 divisors (see below), whose sum is σ = 164857654080. Its totient is φ = 40186368960.

The previous prime is 87272977931. The next prime is 87272977973. The reversal of 87272977948 is 84977927278.

It is a super-3 number, since 3×872729779483 (a number of 34 digits) contains 333 as substring.

It is a congruent number.

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, 1924603 + ... + 1969426.

It is an arithmetic number, because the mean of its divisors is an integer number (6869068920).

Almost surely, 287272977948 is an apocalyptic number.

It is an amenable number.

87272977948 is a deficient number, since it is larger than the sum of its proper divisors (77584676132).

87272977948 is a wasteful number, since it uses less digits than its factorization.

87272977948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3894477 (or 3894475 counting only the distinct ones).

The product of its digits is 199148544, while the sum is 70.

The spelling of 87272977948 in words is "eighty-seven billion, two hundred seventy-two million, nine hundred seventy-seven thousand, nine hundred forty-eight".

Divisors: 1 2 4 13 26 52 431 862 1724 5603 11206 22412 3894029 7788058 15576116 50622377 101244754 202489508 1678326499 3356652998 6713305996 21818244487 43636488974 87272977948