Search a number
-
+
70580028 = 2234323181
BaseRepresentation
bin1000011010011…
…11011100111100
311220210211121010
410031033130330
5121032030103
611000435220
71514630451
oct415173474
9156724533
1070580028
1136927902
121b778b10
131181283c
149533828
1562e2903
hex434f73c

70580028 has 36 divisors (see below), whose sum is σ = 168658728. Its totient is φ = 22972320.

The previous prime is 70580023. The next prime is 70580093. The reversal of 70580028 is 82008507.

It is a junction number, because it is equal to n+sod(n) for n = 70579977 and 70580004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70580023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20598 + ... + 23778.

Almost surely, 270580028 is an apocalyptic number.

It is an amenable number.

70580028 is an abundant number, since it is smaller than the sum of its proper divisors (98078700).

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

70580028 is a wasteful number, since it uses less digits than its factorization.

70580028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3274 (or 3229 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 70580028 is about 8401.1920582736. The cubic root of 70580028 is about 413.2637150062.

The spelling of 70580028 in words is "seventy million, five hundred eighty thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 1849 3181 3698 5547 6362 7396 9543 11094 12724 19086 22188 38172 136783 273566 410349 547132 820698 1641396 5881669 11763338 17645007 23526676 35290014 70580028