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428962100 = 22527797757
BaseRepresentation
bin11001100100010…
…111000100110100
31002220011112101012
4121210113010310
51334303241400
6110322051352
713426055240
oct3144270464
91086145335
10428962100
11200157636
12bb7a9b58
136ab42038
1440d83420
15279d4d35
hex19917134

428962100 has 72 divisors (see below), whose sum is σ = 1077431040. Its totient is φ = 145192320.

The previous prime is 428962099. The next prime is 428962117. The reversal of 428962100 is 1269824.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 51422 + ... + 59178.

It is an arithmetic number, because the mean of its divisors is an integer number (14964320).

Almost surely, 2428962100 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 428962100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (538715520).

428962100 is an abundant number, since it is smaller than the sum of its proper divisors (648468940).

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

428962100 is a wasteful number, since it uses less digits than its factorization.

428962100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7857 (or 7850 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 428962100 is about 20711.4002423786. The cubic root of 428962100 is about 754.1764626724.

The spelling of 428962100 in words is "four hundred twenty-eight million, nine hundred sixty-two thousand, one hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 79 100 140 158 175 316 350 395 553 700 790 1106 1580 1975 2212 2765 3950 5530 7757 7900 11060 13825 15514 27650 31028 38785 54299 55300 77570 108598 155140 193925 217196 271495 387850 542990 612803 775700 1085980 1225606 1357475 2451212 2714950 3064015 4289621 5429900 6128030 8579242 12256060 15320075 17158484 21448105 30640150 42896210 61280300 85792420 107240525 214481050 428962100