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70739305 = 57131071453
BaseRepresentation
bin1000011011101…
…10010101101001
311221002221002021
410031312111221
5121102124210
611004104441
71516163020
oct415662551
9157087067
1070739305
1136a2653a
121b835121
131186a1a0
1495758b7
156324bda
hex4376569

70739305 has 32 divisors (see below), whose sum is σ = 105525504. Its totient is φ = 44326656.

The previous prime is 70739269. The next prime is 70739341. The reversal of 70739305 is 50393707.

It is an interprime number because it is at equal distance from previous prime (70739269) and next prime (70739341).

It is a cyclic number.

It is not a de Polignac number, because 70739305 - 27 = 70739177 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47959 + ... + 49411.

It is an arithmetic number, because the mean of its divisors is an integer number (3297672).

Almost surely, 270739305 is an apocalyptic number.

It is an amenable number.

70739305 is a deficient number, since it is larger than the sum of its proper divisors (34786199).

70739305 is a wasteful number, since it uses less digits than its factorization.

70739305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585.

The product of its (nonzero) digits is 19845, while the sum is 34.

The square root of 70739305 is about 8410.6661448425. Note that the first 3 decimals coincide. The cubic root of 70739305 is about 413.5743503437.

The spelling of 70739305 in words is "seventy million, seven hundred thirty-nine thousand, three hundred five".

Divisors: 1 5 7 13 35 65 91 107 455 535 749 1391 1453 3745 6955 7265 9737 10171 18889 48685 50855 94445 132223 155471 661115 777355 1088297 2021123 5441485 10105615 14147861 70739305