Search a number
-
+
70829290 = 2571099283
BaseRepresentation
bin1000011100011…
…00010011101010
311221021111112001
410032030103222
5121113014130
611010041214
71520016250
oct416142352
9157244461
1070829290
1136a88104
121b87920a
131189c12c
14959a5d0
1563416ca
hex438c4ea

70829290 has 32 divisors (see below), whose sum is σ = 147058560. Its totient is φ = 24058944.

The previous prime is 70829287. The next prime is 70829309. The reversal of 70829290 is 9292807.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2989 + ... + 12271.

It is an arithmetic number, because the mean of its divisors is an integer number (4595580).

Almost surely, 270829290 is an apocalyptic number.

70829290 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

70829290 is an abundant number, since it is smaller than the sum of its proper divisors (76229270).

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

70829290 is a wasteful number, since it uses less digits than its factorization.

70829290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9406.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 70829290 is about 8416.0139020798. The cubic root of 70829290 is about 413.7496405348.

The spelling of 70829290 in words is "seventy million, eight hundred twenty-nine thousand, two hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 109 218 545 763 1090 1526 3815 7630 9283 18566 46415 64981 92830 129962 324905 649810 1011847 2023694 5059235 7082929 10118470 14165858 35414645 70829290