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196464780 = 223251091471
BaseRepresentation
bin10111011010111…
…01000010001100
3111200200110000100
423231131002030
5400243333110
631254531100
74603631421
oct1355350214
9450613010
10196464780
11a0998996
1255966a90
133191a165
141c141d48
15123abbc0
hexbb5d08c

196464780 has 36 divisors (see below), whose sum is σ = 595943712. Its totient is φ = 52390560.

The previous prime is 196464773. The next prime is 196464797. The reversal of 196464780 is 87464691.

196464780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 545556 + ... + 545915.

It is an arithmetic number, because the mean of its divisors is an integer number (16553992).

Almost surely, 2196464780 is an apocalyptic number.

196464780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196464780 is an abundant number, since it is smaller than the sum of its proper divisors (399478932).

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

196464780 is a wasteful number, since it uses less digits than its factorization.

196464780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091486 (or 1091481 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 196464780 is about 14016.5894567830. The cubic root of 196464780 is about 581.3373618255.

The spelling of 196464780 in words is "one hundred ninety-six million, four hundred sixty-four thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 1091471 2182942 3274413 4365884 5457355 6548826 9823239 10914710 13097652 16372065 19646478 21829420 32744130 39292956 49116195 65488260 98232390 196464780