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989058941 = 13613373701
BaseRepresentation
bin111010111100111…
…101011101111101
32112221002101210122
4322330331131331
54011144341231
6242050544325
733336601523
oct7274753575
92487071718
10989058941
11468330692
122372980a5
13129ba91a0
1495500313
155bc6e77b
hex3af3d77d

989058941 has 16 divisors (see below), whose sum is σ = 1086107568. Its totient is φ = 895104000.

The previous prime is 989058923. The next prime is 989058943. The reversal of 989058941 is 149850989.

It can be written as a sum of positive squares in 8 ways, for example, as 377486041 + 611572900 = 19429^2 + 24730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-989058941 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989058943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265391 + ... + 269091.

It is an arithmetic number, because the mean of its divisors is an integer number (67881723).

Almost surely, 2989058941 is an apocalyptic number.

It is an amenable number.

989058941 is a deficient number, since it is larger than the sum of its proper divisors (97048627).

989058941 is a wasteful number, since it uses less digits than its factorization.

989058941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4112.

The product of its (nonzero) digits is 933120, while the sum is 53.

The square root of 989058941 is about 31449.3074804518. The cubic root of 989058941 is about 996.3395981396.

The spelling of 989058941 in words is "nine hundred eighty-nine million, fifty-eight thousand, nine hundred forty-one".

Divisors: 1 13 61 337 793 3701 4381 20557 48113 225761 267241 1247237 2934893 16214081 76081457 989058941