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377968820 = 225171111673
BaseRepresentation
bin10110100001110…
…101100010110100
3222100012210202012
4112201311202310
51233230000240
6101301103352
712236452625
oct2641654264
9870183665
10377968820
11184398629
12a66b7b58
13603c97b8
14382aba4c
15232b0b65
hex168758b4

377968820 has 24 divisors (see below), whose sum is σ = 840425544. Its totient is φ = 142294016.

The previous prime is 377968819. The next prime is 377968823. The reversal of 377968820 is 28869773.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 50865424 + 327103396 = 7132^2 + 18086^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (377968823) 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, 555497 + ... + 556176.

It is an arithmetic number, because the mean of its divisors is an integer number (35017731).

Almost surely, 2377968820 is an apocalyptic number.

It is an amenable number.

377968820 is an abundant number, since it is smaller than the sum of its proper divisors (462456724).

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

377968820 is a wasteful number, since it uses less digits than its factorization.

377968820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111699 (or 1111697 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 50.

The square root of 377968820 is about 19441.4202156118. The cubic root of 377968820 is about 723.0227982203.

The spelling of 377968820 in words is "three hundred seventy-seven million, nine hundred sixty-eight thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 1111673 2223346 4446692 5558365 11116730 18898441 22233460 37796882 75593764 94492205 188984410 377968820