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10771138040 = 23513151137177
BaseRepresentation
bin10100000100000001…
…01000010111111000
31000210122210111122112
422002000220113320
5134024402404130
64540450511452
7530630106545
oct120200502770
930718714575
1010771138040
114628032483
122107295588
1310286a6380
14742737bcc
15430933495
hex2820285f8

10771138040 has 64 divisors (see below), whose sum is σ = 26272330560. Its totient is φ = 3950668800.

The previous prime is 10771138039. The next prime is 10771138099. The reversal of 10771138040 is 4083117701.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10771137988 and 10771138006.

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, 9932 + ... + 147108.

It is an arithmetic number, because the mean of its divisors is an integer number (410505165).

Almost surely, 210771138040 is an apocalyptic number.

10771138040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10771138040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13136165280).

10771138040 is an abundant number, since it is smaller than the sum of its proper divisors (15501192520).

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

10771138040 is a wasteful number, since it uses less digits than its factorization.

10771138040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137352 (or 137348 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 32.

The spelling of 10771138040 in words is "ten billion, seven hundred seventy-one million, one hundred thirty-eight thousand, forty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 151 260 302 520 604 755 1208 1510 1963 3020 3926 6040 7852 9815 15704 19630 39260 78520 137177 274354 548708 685885 1097416 1371770 1783301 2743540 3566602 5487080 7133204 8916505 14266408 17833010 20713727 35666020 41427454 71332040 82854908 103568635 165709816 207137270 269278451 414274540 538556902 828549080 1077113804 1346392255 2154227608 2692784510 5385569020 10771138040