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77087348 = 22131482449
BaseRepresentation
bin1001001100001…
…00001001110100
312101001102221222
410212010021310
5124213243343
611352125512
71624142312
oct446041164
9171042858
1077087348
113a571958
1221996898
1312c80720
14a3490b2
156b7aa68
hex4984274

77087348 has 12 divisors (see below), whose sum is σ = 145280100. Its totient is φ = 35578752.

The previous prime is 77087293. The next prime is 77087383. The reversal of 77087348 is 84378077.

It can be written as a sum of positive squares in 2 ways, for example, as 43586404 + 33500944 = 6602^2 + 5788^2 .

It is a junction number, because it is equal to n+sod(n) for n = 77087299 and 77087308.

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, 741173 + ... + 741276.

It is an arithmetic number, because the mean of its divisors is an integer number (12106675).

Almost surely, 277087348 is an apocalyptic number.

It is an amenable number.

77087348 is a deficient number, since it is larger than the sum of its proper divisors (68192752).

77087348 is a wasteful number, since it uses less digits than its factorization.

77087348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482466 (or 1482464 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 44.

The square root of 77087348 is about 8779.9400909118. The cubic root of 77087348 is about 425.5928943002.

The spelling of 77087348 in words is "seventy-seven million, eighty-seven thousand, three hundred forty-eight".

Divisors: 1 2 4 13 26 52 1482449 2964898 5929796 19271837 38543674 77087348