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87259796 = 22131678073
BaseRepresentation
bin1010011001101…
…11101010010100
320002012020221022
411030313222110
5134314303141
612354140312
72106460511
oct514675224
9202166838
1087259796
114528a638
1225281698
1315102920
14b836308
1579d9b4b
hex5337a94

87259796 has 12 divisors (see below), whose sum is σ = 164451252. Its totient is φ = 40273728.

The previous prime is 87259789. The next prime is 87259807. The reversal of 87259796 is 69795278.

It can be written as a sum of positive squares in 2 ways, for example, as 18369796 + 68890000 = 4286^2 + 8300^2 .

It is a super-2 number, since 2×872597962 = 15228543995923232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 838985 + ... + 839088.

It is an arithmetic number, because the mean of its divisors is an integer number (13704271).

Almost surely, 287259796 is an apocalyptic number.

It is an amenable number.

87259796 is a deficient number, since it is larger than the sum of its proper divisors (77191456).

87259796 is a wasteful number, since it uses less digits than its factorization.

87259796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678090 (or 1678088 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 53.

The square root of 87259796 is about 9341.2951992751. The cubic root of 87259796 is about 443.5453845782.

The spelling of 87259796 in words is "eighty-seven million, two hundred fifty-nine thousand, seven hundred ninety-six".

Divisors: 1 2 4 13 26 52 1678073 3356146 6712292 21814949 43629898 87259796