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3133830 = 235714923
BaseRepresentation
bin1011111101000110000110
312220012210210
423331012012
51300240310
6151100250
735431350
oct13750606
95805723
103133830
111850547
121071686
1385954b
145b80d0
1541d820
hex2fd186

3133830 has 32 divisors (see below), whose sum is σ = 8596224. Its totient is φ = 716256.

The previous prime is 3133811. The next prime is 3133843. The reversal of 3133830 is 383313.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 3133797 and 3133806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7252 + ... + 7671.

It is an arithmetic number, because the mean of its divisors is an integer number (268632).

Almost surely, 23133830 is an apocalyptic number.

3133830 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3133830 is an abundant number, since it is smaller than the sum of its proper divisors (5462394).

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

3133830 is a wasteful number, since it uses less digits than its factorization.

3133830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14940.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 3133830 is about 1770.2626923708. The cubic root of 3133830 is about 146.3384591592.

The spelling of 3133830 in words is "three million, one hundred thirty-three thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 14923 29846 44769 74615 89538 104461 149230 208922 223845 313383 447690 522305 626766 1044610 1566915 3133830