Search a number
-
+
26353806380 = 22511119790029
BaseRepresentation
bin11000100010110011…
…110010110000101100
32112000122100002000222
4120202303302300230
5412433033301010
620035021310512
71622033441516
oct304263626054
975018302028
1026353806380
11101a4044880
125135a05438
13263cb60295
1413c00b2bb6
15a43990355
hex622cf2c2c

26353806380 has 24 divisors (see below), whose sum is σ = 60374175120. Its totient is φ = 9583202240.

The previous prime is 26353806373. The next prime is 26353806383. The reversal of 26353806380 is 8360835362.

It is a super-2 number, since 2×263538063802 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (26353806383) 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, 59894795 + ... + 59895234.

It is an arithmetic number, because the mean of its divisors is an integer number (2515590630).

Almost surely, 226353806380 is an apocalyptic number.

26353806380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26353806380 is an abundant number, since it is smaller than the sum of its proper divisors (34020368740).

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

26353806380 is a wasteful number, since it uses less digits than its factorization.

26353806380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119790049 (or 119790047 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 26353806380 in words is "twenty-six billion, three hundred fifty-three million, eight hundred six thousand, three hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 119790029 239580058 479160116 598950145 1197900290 1317690319 2395800580 2635380638 5270761276 6588451595 13176903190 26353806380