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9006875990 = 2571011273957
BaseRepresentation
bin10000110001101101…
…00000010101010110
3212020201000201002122
420120312200111112
5121421230012430
64045424335542
7436125116450
oct103066402526
925221021078
109006875990
113902168272
1218b44745b2
13b07019c28
146162c52d0
1537aad8ee5
hex218da0556

9006875990 has 32 divisors (see below), whose sum is σ = 18711895104. Its totient is φ = 3057494400.

The previous prime is 9006875987. The next prime is 9006876089. The reversal of 9006875990 is 995786009.

It is a super-2 number, since 2×90068759902 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 629909 + ... + 644048.

It is an arithmetic number, because the mean of its divisors is an integer number (584746722).

Almost surely, 29006875990 is an apocalyptic number.

9006875990 is an abundant number, since it is smaller than the sum of its proper divisors (9705019114).

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

9006875990 is a wasteful number, since it uses less digits than its factorization.

9006875990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274072.

The product of its (nonzero) digits is 1224720, while the sum is 53.

The square root of 9006875990 is about 94904.5625352122. The cubic root of 9006875990 is about 2080.6134154487.

The spelling of 9006875990 in words is "nine billion, six million, eight hundred seventy-five thousand, nine hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 101 202 505 707 1010 1414 3535 7070 1273957 2547914 6369785 8917699 12739570 17835398 44588495 89176990 128669657 257339314 643348285 900687599 1286696570 1801375198 4503437995 9006875990