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372990 = 23512433
BaseRepresentation
bin1011011000011111110
3200221122110
41123003332
543413430
611554450
73112302
oct1330376
9627573
10372990
11235262
1215ba26
13100a07
1499d02
15757b0
hex5b0fe

372990 has 16 divisors (see below), whose sum is σ = 895248. Its totient is φ = 99456.

The previous prime is 372979. The next prime is 373003. The reversal of 372990 is 99273.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 12433 = 372990 / (3 + 7 + 2 + 9 + 9 + 0).

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 372990.

It is an unprimeable number.

372990 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6187 + ... + 6246.

It is an arithmetic number, because the mean of its divisors is an integer number (55953).

2372990 is an apocalyptic number.

372990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

372990 is an abundant number, since it is smaller than the sum of its proper divisors (522258).

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

372990 is a wasteful number, since it uses less digits than its factorization.

372990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12443.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 372990 is about 610.7290725027. The cubic root of 372990 is about 71.9834066700.

The spelling of 372990 in words is "three hundred seventy-two thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 12433 24866 37299 62165 74598 124330 186495 372990