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40130020554 = 23132029253567
BaseRepresentation
bin100101010111111011…
…111000010011001010
310211120201201021011120
4211113323320103022
51124141241124204
630234021340110
72620313355321
oct452773702312
9124521637146
1040130020554
1116023394448
12793b567636
133a26ca74c0
141d299750b8
15109d11b6d9
hex957ef84ca

40130020554 has 32 divisors (see below), whose sum is σ = 86476830720. Its totient is φ = 12341564352.

The previous prime is 40130020499. The next prime is 40130020591. The reversal of 40130020554 is 45502003104.

It is a super-2 number, since 2×401300205542 (a number of 22 digits) contains 22 as substring.

It is a Curzon 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, 31479 + ... + 285045.

It is an arithmetic number, because the mean of its divisors is an integer number (2702400960).

Almost surely, 240130020554 is an apocalyptic number.

40130020554 is an abundant number, since it is smaller than the sum of its proper divisors (46346810166).

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

40130020554 is a wasteful number, since it uses less digits than its factorization.

40130020554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255614.

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 40130020554 its reverse (45502003104), we get a palindrome (85632023658).

The spelling of 40130020554 in words is "forty billion, one hundred thirty million, twenty thousand, five hundred fifty-four".

Divisors: 1 2 3 6 13 26 39 78 2029 4058 6087 12174 26377 52754 79131 158262 253567 507134 760701 1521402 3296371 6592742 9889113 19778226 514487443 1028974886 1543462329 3086924658 6688336759 13376673518 20065010277 40130020554