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3073890 = 235791297
BaseRepresentation
bin1011101110011101100010
312210011120210
423232131202
51241331030
6145514550
735061531
oct13563542
95704523
103073890
11180a506
121042a56
13838191
145a0318
1540abb0
hex2ee762

3073890 has 32 divisors (see below), whose sum is σ = 7476480. Its totient is φ = 808704.

The previous prime is 3073883. The next prime is 3073891. The reversal of 3073890 is 983703.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3073891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1722 + ... + 3018.

It is an arithmetic number, because the mean of its divisors is an integer number (233640).

Almost surely, 23073890 is an apocalyptic number.

3073890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3073890 is an abundant number, since it is smaller than the sum of its proper divisors (4402590).

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

3073890 is a wasteful number, since it uses less digits than its factorization.

3073890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386.

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

The square root of 3073890 is about 1753.2512655065. The cubic root of 3073890 is about 145.3994534496.

It can be divided in two parts, 30 and 73890, that added together give a triangular number (73920 = T384).

The spelling of 3073890 in words is "three million, seventy-three thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 79 158 237 395 474 790 1185 1297 2370 2594 3891 6485 7782 12970 19455 38910 102463 204926 307389 512315 614778 1024630 1536945 3073890