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119628820 = 2255981441
BaseRepresentation
bin1110010000101…
…10010000010100
322100002202220001
413020112100110
5221111110240
615512021044
72651554033
oct710262024
9270082801
10119628820
11615889a3
1234091784
131ba26cac
1411c6071a
15a78089a
hex7216414

119628820 has 12 divisors (see below), whose sum is σ = 251220564. Its totient is φ = 47851520.

The previous prime is 119628809. The next prime is 119628829. The reversal of 119628820 is 28826911.

It can be written as a sum of positive squares in 2 ways, for example, as 20666116 + 98962704 = 4546^2 + 9948^2 .

It is a super-2 number, since 2×1196288202 = 28622109149184800, 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 119628820.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (119628829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2990701 + ... + 2990740.

It is an arithmetic number, because the mean of its divisors is an integer number (20935047).

Almost surely, 2119628820 is an apocalyptic number.

119628820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

119628820 is an abundant number, since it is smaller than the sum of its proper divisors (131591744).

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

119628820 is a wasteful number, since it uses less digits than its factorization.

119628820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5981450 (or 5981448 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 119628820 is about 10937.4960571421. The cubic root of 119628820 is about 492.7333292771.

The spelling of 119628820 in words is "one hundred nineteen million, six hundred twenty-eight thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 5981441 11962882 23925764 29907205 59814410 119628820