Search a number
-
+
70034839 = 723218913
BaseRepresentation
bin1000010110010…
…10010110010111
311212210010201221
410023022112113
5120412103324
610541031211
71510200130
oct413122627
9155703657
1070034839
1136595236
121b555507
1311681644
149430c87
1562360e4
hex42ca597

70034839 has 12 divisors (see below), whose sum is σ = 83675536. Its totient is φ = 57416832.

The previous prime is 70034803. The next prime is 70034869. The reversal of 70034839 is 93843007.

It is not a de Polignac number, because 70034839 - 211 = 70032791 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70034869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5754 + ... + 13159.

Almost surely, 270034839 is an apocalyptic number.

70034839 is a deficient number, since it is larger than the sum of its proper divisors (13640697).

70034839 is a wasteful number, since it uses less digits than its factorization.

70034839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18966 (or 18943 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 70034839 is about 8368.6820348248. The cubic root of 70034839 is about 412.1968907642.

The spelling of 70034839 in words is "seventy million, thirty-four thousand, eight hundred thirty-nine".

Divisors: 1 7 23 161 529 3703 18913 132391 434999 3044993 10004977 70034839