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70899050 = 25210913009
BaseRepresentation
bin1000011100111…
…01010101101010
311221102001012202
410032131111222
5121122232200
611011340202
71520426525
oct416352552
9157361182
1070899050
1137025562
121b8b1662
13118c4b01
1495b7bbc
1563571d5
hex439d56a

70899050 has 24 divisors (see below), whose sum is σ = 133092300. Its totient is φ = 28097280.

The previous prime is 70899047. The next prime is 70899161. The reversal of 70899050 is 5099807.

It can be written as a sum of positive squares in 6 ways, for example, as 21520321 + 49378729 = 4639^2 + 7027^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70898995 and 70899013.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1055 + ... + 11954.

Almost surely, 270899050 is an apocalyptic number.

70899050 is a deficient number, since it is larger than the sum of its proper divisors (62193250).

70899050 is a wasteful number, since it uses less digits than its factorization.

70899050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13130 (or 13125 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 70899050 is about 8420.1573619500. The cubic root of 70899050 is about 413.8854304239.

The spelling of 70899050 in words is "seventy million, eight hundred ninety-nine thousand, fifty".

Divisors: 1 2 5 10 25 50 109 218 545 1090 2725 5450 13009 26018 65045 130090 325225 650450 1417981 2835962 7089905 14179810 35449525 70899050