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988833890 = 25118989399
BaseRepresentation
bin111010111100000…
…110100001100010
32112220122222002102
4322330012201202
54011120141030
6242042050402
733334643432
oct7274064142
92486588072
10988833890
114681975a0
122371a9a02
13129b2a915
14954822c2
155bc27c45
hex3af06862

988833890 has 16 divisors (see below), whose sum is σ = 1941710400. Its totient is φ = 359575920.

The previous prime is 988833889. The next prime is 988833899. The reversal of 988833890 is 98338889.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (988833899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4494590 + ... + 4494809.

It is an arithmetic number, because the mean of its divisors is an integer number (121356900).

Almost surely, 2988833890 is an apocalyptic number.

988833890 is a deficient number, since it is larger than the sum of its proper divisors (952876510).

988833890 is a wasteful number, since it uses less digits than its factorization.

988833890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8989417.

The product of its (nonzero) digits is 2985984, while the sum is 56.

The square root of 988833890 is about 31445.7292807783. The cubic root of 988833890 is about 996.2640231923.

The spelling of 988833890 in words is "nine hundred eighty-eight million, eight hundred thirty-three thousand, eight hundred ninety".

Divisors: 1 2 5 10 11 22 55 110 8989399 17978798 44946995 89893990 98883389 197766778 494416945 988833890