Search a number
-
+
70187046 = 2314978509
BaseRepresentation
bin1000010111011…
…11100000100110
311220001212112020
410023233200212
5120431441141
610544204010
71511402646
oct413574046
9156055466
1070187046
1136689626
121b609606
13117059c7
149470526
156266266
hex42ef826

70187046 has 16 divisors (see below), whose sum is σ = 141318000. Its totient is φ = 23238368.

The previous prime is 70187023. The next prime is 70187059. The reversal of 70187046 is 64078107.

It is a super-2 number, since 2×701870462 = 9852442852412232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70186998 and 70187016.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 38361 + ... + 40148.

It is an arithmetic number, because the mean of its divisors is an integer number (8832375).

Almost surely, 270187046 is an apocalyptic number.

70187046 is an abundant number, since it is smaller than the sum of its proper divisors (71130954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70187046 is a wasteful number, since it uses less digits than its factorization.

70187046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78663.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 70187046 is about 8377.7709445890. The cubic root of 70187046 is about 412.4952844273.

The spelling of 70187046 in words is "seventy million, one hundred eighty-seven thousand, forty-six".

Divisors: 1 2 3 6 149 298 447 894 78509 157018 235527 471054 11697841 23395682 35093523 70187046