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10303131040 = 255247725997
BaseRepresentation
bin10011001100001110…
…10100110110100000
3222121001011021201221
421212013110312200
5132100100143130
64422211504424
7513215111626
oct114607246640
928531137657
1010303131040
114407937934
121bb65b8114
13c82743457
146da50d516
154047d987a
hex2661d4da0

10303131040 has 48 divisors (see below), whose sum is σ = 24351910632. Its totient is φ = 4119430144.

The previous prime is 10303131031. The next prime is 10303131043. The reversal of 10303131040 is 4013130301.

It can be written as a sum of positive squares in 4 ways, for example, as 6104609424 + 4198521616 = 78132^2 + 64796^2 .

It is a super-2 number, since 2×103031310402 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (10303131043) 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, 383322 + ... + 409318.

Almost surely, 210303131040 is an apocalyptic number.

10303131040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10303131040 is an abundant number, since it is smaller than the sum of its proper divisors (14048779592).

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

10303131040 is a wasteful number, since it uses less digits than its factorization.

10303131040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28489 (or 28481 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 10303131040 its reverse (4013130301), we get a palindrome (14316261341).

The spelling of 10303131040 in words is "ten billion, three hundred three million, one hundred thirty-one thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 2477 4954 9908 12385 19816 24770 25997 39632 49540 51994 79264 99080 103988 129985 198160 207976 259970 396320 415952 519940 831904 1039880 2079760 4159520 64394569 128789138 257578276 321972845 515156552 643945690 1030313104 1287891380 2060626208 2575782760 5151565520 10303131040