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4157020 = 2257231291
BaseRepresentation
bin1111110110111001011100
321211012100201
433312321130
52031011040
6225033244
750222410
oct17667134
97735321
104157020
11238a25a
121485824
13b2719a
147a2d40
15571a9a
hex3f6e5c

4157020 has 48 divisors (see below), whose sum is σ = 10418688. Its totient is φ = 1362240.

The previous prime is 4157011. The next prime is 4157053. The reversal of 4157020 is 207514.

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, 2575 + ... + 3865.

It is an arithmetic number, because the mean of its divisors is an integer number (217056).

Almost surely, 24157020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4157020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5209344).

4157020 is an abundant number, since it is smaller than the sum of its proper divisors (6261668).

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

4157020 is a wasteful number, since it uses less digits than its factorization.

4157020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330 (or 1328 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 4157020 is about 2038.8771419583. The cubic root of 4157020 is about 160.7906180842.

The spelling of 4157020 in words is "four million, one hundred fifty-seven thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 23 28 35 46 70 92 115 140 161 230 322 460 644 805 1291 1610 2582 3220 5164 6455 9037 12910 18074 25820 29693 36148 45185 59386 90370 118772 148465 180740 207851 296930 415702 593860 831404 1039255 2078510 4157020