Search a number
-
+
70122577 = 73204439
BaseRepresentation
bin1000010110111…
…11110001010001
311212221121002111
410023133301101
5120422410302
610542545321
71511014000
oct413376121
9155847074
1070122577
1136645148
121b598241
13116b2565
149454c37
1562520d7
hex42dfc51

70122577 has 8 divisors (see below), whose sum is σ = 81776000. Its totient is φ = 60104772.

The previous prime is 70122541. The next prime is 70122593. The reversal of 70122577 is 77522107.

It is a de Polignac number, because none of the positive numbers 2k-70122577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70122517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101877 + ... + 102562.

It is an arithmetic number, because the mean of its divisors is an integer number (10222000).

Almost surely, 270122577 is an apocalyptic number.

It is an amenable number.

70122577 is a deficient number, since it is larger than the sum of its proper divisors (11653423).

70122577 is an equidigital number, since it uses as much as digits as its factorization.

70122577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204460 (or 204446 counting only the distinct ones).

The product of its (nonzero) digits is 6860, while the sum is 31.

The square root of 70122577 is about 8373.9224381409. The cubic root of 70122577 is about 412.3689491257.

The spelling of 70122577 in words is "seventy million, one hundred twenty-two thousand, five hundred seventy-seven".

Divisors: 1 7 49 343 204439 1431073 10017511 70122577