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1972124 = 2271119337
BaseRepresentation
bin111100001011110011100
310201012020122
413201132130
51001101444
6110134112
722522430
oct7413634
93635218
101972124
111127760
127b1338
1354084b
143949c0
1528e4ee
hex1e179c

1972124 has 48 divisors (see below), whose sum is σ = 4542720. Its totient is φ = 725760.

The previous prime is 1972123. The next prime is 1972129. The reversal of 1972124 is 4212791.

It is a junction number, because it is equal to n+sod(n) for n = 1972093 and 1972102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1972121) 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, 5684 + ... + 6020.

It is an arithmetic number, because the mean of its divisors is an integer number (94640).

21972124 is an apocalyptic number.

1972124 is a gapful number since it is divisible by the number (14) 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 1972124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2271360).

1972124 is an abundant number, since it is smaller than the sum of its proper divisors (2570596).

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

1972124 is a wasteful number, since it uses less digits than its factorization.

1972124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378 (or 376 counting only the distinct ones).

The product of its digits is 1008, while the sum is 26.

The square root of 1972124 is about 1404.3233245944. The cubic root of 1972124 is about 125.4040048340.

The spelling of 1972124 in words is "one million, nine hundred seventy-two thousand, one hundred twenty-four".

Divisors: 1 2 4 7 11 14 19 22 28 38 44 76 77 133 154 209 266 308 337 418 532 674 836 1348 1463 2359 2926 3707 4718 5852 6403 7414 9436 12806 14828 25612 25949 44821 51898 70433 89642 103796 140866 179284 281732 493031 986062 1972124