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196460680 = 23513377809
BaseRepresentation
bin10111011010111…
…00000010001000
3111200200020101111
423231130002020
5400243220210
631254500104
74603613443
oct1355340210
9450606344
10196460680
11a09958a9
1255964634
1331918330
141c14065a
15123aa88a
hexbb5c088

196460680 has 32 divisors (see below), whose sum is σ = 476040600. Its totient is φ = 72539136.

The previous prime is 196460669. The next prime is 196460689. The reversal of 196460680 is 86064691.

It can be written as a sum of positive squares in 4 ways, for example, as 126202756 + 70257924 = 11234^2 + 8382^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (196460689) 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, 188385 + ... + 189424.

Almost surely, 2196460680 is an apocalyptic number.

196460680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196460680 is an abundant number, since it is smaller than the sum of its proper divisors (279579920).

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

196460680 is a wasteful number, since it uses less digits than its factorization.

196460680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377833 (or 377829 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 196460680 is about 14016.4432007553. The cubic root of 196460680 is about 581.3333178441. Note that the first 4 decimals are identical.

The spelling of 196460680 in words is "one hundred ninety-six million, four hundred sixty thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 377809 755618 1511236 1889045 3022472 3778090 4911517 7556180 9823034 15112360 19646068 24557585 39292136 49115170 98230340 196460680