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26690301140 = 22540910133221
BaseRepresentation
bin11000110110110111…
…011010110011010100
32112220002111210001212
4120312313122303110
5414130204114030
620132241440552
71633260550016
oct306667326324
975802453055
1026690301140
1110356a85318
12520a640158
1326947982c9
141412a661b6
15a632ac595
hex636ddacd4

26690301140 has 48 divisors (see below), whose sum is σ = 56259599760. Its totient is φ = 10636200960.

The previous prime is 26690301137. The next prime is 26690301151. The reversal of 26690301140 is 4110309662.

It can be written as a sum of positive squares in 8 ways, for example, as 78251716 + 26612049424 = 8846^2 + 163132^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26690301097 and 26690301106.

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, 8284730 + ... + 8287950.

It is an arithmetic number, because the mean of its divisors is an integer number (1172074995).

Almost surely, 226690301140 is an apocalyptic number.

26690301140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26690301140 is an abundant number, since it is smaller than the sum of its proper divisors (29569298620).

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

26690301140 is a wasteful number, since it uses less digits than its factorization.

26690301140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4652 (or 4650 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 26690301140 in words is "twenty-six billion, six hundred ninety million, three hundred one thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 409 818 1013 1636 2026 2045 3221 4052 4090 5065 6442 8180 10130 12884 16105 20260 32210 64420 414317 828634 1317389 1657268 2071585 2634778 3262873 4143170 5269556 6525746 6586945 8286340 13051492 13173890 16314365 26347780 32628730 65257460 1334515057 2669030114 5338060228 6672575285 13345150570 26690301140