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802428890 = 25271129599
BaseRepresentation
bin101111110101000…
…001011111011010
32001220220121111112
4233311001133122
53120410211030
6211342500322
725612350554
oct5765013732
92056817445
10802428890
11381a4a77a
121a48946a2
13ca3235c3
14787dc4d4
154a6a6a95
hex2fd417da

802428890 has 16 divisors (see below), whose sum is σ = 1444953600. Its totient is φ = 320842320.

The previous prime is 802428857. The next prime is 802428901. The reversal of 802428890 is 98824208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12311 + ... + 41909.

It is an arithmetic number, because the mean of its divisors is an integer number (90309600).

Almost surely, 2802428890 is an apocalyptic number.

802428890 is a deficient number, since it is larger than the sum of its proper divisors (642524710).

802428890 is a wasteful number, since it uses less digits than its factorization.

802428890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32317.

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 802428890 is about 28327.1758211086. The cubic root of 802428890 is about 929.2563099134.

The spelling of 802428890 in words is "eight hundred two million, four hundred twenty-eight thousand, eight hundred ninety".

Divisors: 1 2 5 10 2711 5422 13555 27110 29599 59198 147995 295990 80242889 160485778 401214445 802428890