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70676519 = 137515887
BaseRepresentation
bin1000011011001…
…11000000100111
311220222201221212
410031213000213
5121043122034
611002502035
71515511664
oct415470047
9156881855
1070676519
1136993351
121b80491b
1311847734
14955aa6b
1563112ce
hex4367027

70676519 has 4 divisors (see below), whose sum is σ = 71192544. Its totient is φ = 70160496.

The previous prime is 70676503. The next prime is 70676527. The reversal of 70676519 is 91567607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91567607 = 144763281.

It is a cyclic number.

It is not a de Polignac number, because 70676519 - 24 = 70676503 is a prime.

It is a super-2 number, since 2×706765192 = 9990340675914722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70676569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257807 + ... + 258080.

It is an arithmetic number, because the mean of its divisors is an integer number (17798136).

Almost surely, 270676519 is an apocalyptic number.

70676519 is a deficient number, since it is larger than the sum of its proper divisors (516025).

70676519 is a wasteful number, since it uses less digits than its factorization.

70676519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516024.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 70676519 is about 8406.9327938315. The cubic root of 70676519 is about 413.4519555621.

The spelling of 70676519 in words is "seventy million, six hundred seventy-six thousand, five hundred nineteen".

Divisors: 1 137 515887 70676519