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11611070440 = 235412172681
BaseRepresentation
bin10101101000001001…
…01101111111101000
31002222012021111021221
422310010231333220
5142234413223230
65200053311424
7560506320214
oct126404557750
932865244257
1011611070440
114a19168092
122300635574
1311306cb0a8
147c20d9944
1547e54727a
hex2b412dfe8

11611070440 has 48 divisors (see below), whose sum is σ = 26777797740. Its totient is φ = 4531123200.

The previous prime is 11611070423. The next prime is 11611070447. The reversal of 11611070440 is 4407011611.

It can be written as a sum of positive squares in 6 ways, for example, as 145924 + 11610924516 = 382^2 + 107754^2 .

It is not an unprimeable number, because it can be changed into a prime (11611070447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19101 + ... + 153580.

Almost surely, 211611070440 is an apocalyptic number.

11611070440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11611070440 is an abundant number, since it is smaller than the sum of its proper divisors (15166727300).

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

11611070440 is a wasteful number, since it uses less digits than its factorization.

11611070440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172774 (or 172729 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The spelling of 11611070440 in words is "eleven billion, six hundred eleven million, seventy thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 41 82 164 205 328 410 820 1640 1681 3362 6724 8405 13448 16810 33620 67240 172681 345362 690724 863405 1381448 1726810 3453620 6907240 7079921 14159842 28319684 35399605 56639368 70799210 141598420 283196840 290276761 580553522 1161107044 1451383805 2322214088 2902767610 5805535220 11611070440