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1906872 = 2331131233
BaseRepresentation
bin111010001100010111000
310120212201220
413101202320
5442004442
6104512040
722131252
oct7214270
93525656
101906872
111092730
1277b620
13519c36
14378cd2
15279eec
hex1d18b8

1906872 has 64 divisors (see below), whose sum is σ = 5391360. Its totient is φ = 556800.

The previous prime is 1906871. The next prime is 1906889. The reversal of 1906872 is 2786091.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1906871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8068 + ... + 8300.

It is an arithmetic number, because the mean of its divisors is an integer number (84240).

21906872 is an apocalyptic number.

1906872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1906872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2695680).

1906872 is an abundant number, since it is smaller than the sum of its proper divisors (3484488).

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

1906872 is a wasteful number, since it uses less digits than its factorization.

1906872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 1906872 is about 1380.8953617128. The cubic root of 1906872 is about 124.0053761110.

The spelling of 1906872 in words is "one million, nine hundred six thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 11 12 22 24 31 33 44 62 66 88 93 124 132 186 233 248 264 341 372 466 682 699 744 932 1023 1364 1398 1864 2046 2563 2728 2796 4092 5126 5592 7223 7689 8184 10252 14446 15378 20504 21669 28892 30756 43338 57784 61512 79453 86676 158906 173352 238359 317812 476718 635624 953436 1906872