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3980370 = 235132679
BaseRepresentation
bin1111001011110001010010
321111020001010
433023301102
52004332440
6221151350
745555402
oct17136122
97436033
103980370
112279569
1213bb556
13a94964
14758802
15539580
hex3cbc52

3980370 has 16 divisors (see below), whose sum is σ = 9552960. Its totient is φ = 1061424.

The previous prime is 3980359. The next prime is 3980377. The reversal of 3980370 is 730893.

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: 132679 = 3980370 / (3 + 9 + 8 + 0 + 3 + 7 + 0).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3980377) 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, 66310 + ... + 66369.

It is an arithmetic number, because the mean of its divisors is an integer number (597060).

Almost surely, 23980370 is an apocalyptic number.

3980370 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3980370 is an abundant number, since it is smaller than the sum of its proper divisors (5572590).

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

3980370 is a wasteful number, since it uses less digits than its factorization.

3980370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132689.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 3980370 is about 1995.0864642917. The cubic root of 3980370 is about 158.4800068988.

The spelling of 3980370 in words is "three million, nine hundred eighty thousand, three hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 132679 265358 398037 663395 796074 1326790 1990185 3980370