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196505020 = 2259825251
BaseRepresentation
bin10111011011001…
…10110110111100
3111200202111012201
423231212312330
5400301130040
631255441244
74604156635
oct1355466674
9450674181
10196505020
11a0a16148
1255986224
133193257a
141c15288c
15123b8a9a
hexbb66dbc

196505020 has 12 divisors (see below), whose sum is σ = 412660584. Its totient is φ = 78602000.

The previous prime is 196505017. The next prime is 196505033. The reversal of 196505020 is 20505691.

It is a super-2 number, since 2×1965050202 = 77228445770400800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 196505020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4912606 + ... + 4912645.

It is an arithmetic number, because the mean of its divisors is an integer number (34388382).

Almost surely, 2196505020 is an apocalyptic number.

196505020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196505020 is an abundant number, since it is smaller than the sum of its proper divisors (216155564).

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

196505020 is a wasteful number, since it uses less digits than its factorization.

196505020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9825260 (or 9825258 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 196505020 is about 14018.0248252027. The cubic root of 196505020 is about 581.3770490381.

The spelling of 196505020 in words is "one hundred ninety-six million, five hundred five thousand, twenty".

Divisors: 1 2 4 5 10 20 9825251 19650502 39301004 49126255 98252510 196505020