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429806680 = 23529536991
BaseRepresentation
bin11001100111100…
…101010001011000
31002221202102220221
4121213211101120
51340012303210
6110352125424
713436203462
oct3147452130
91087672827
10429806680
11200684136
12bbb36874
136b0795a4
1441123132
1527b001da
hex199e5458

429806680 has 64 divisors (see below), whose sum is σ = 1019433600. Its totient is φ = 162839040.

The previous prime is 429806659. The next prime is 429806711. The reversal of 429806680 is 86608924.

It is a happy number.

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, 57985 + ... + 64975.

It is an arithmetic number, because the mean of its divisors is an integer number (15928650).

Almost surely, 2429806680 is an apocalyptic number.

429806680 is a gapful number since it is divisible by the number (40) 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 429806680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (509716800).

429806680 is an abundant number, since it is smaller than the sum of its proper divisors (589626920).

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

429806680 is a wasteful number, since it uses less digits than its factorization.

429806680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7084 (or 7080 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 429806680 is about 20731.7794701757. The cubic root of 429806680 is about 754.6711021575.

The spelling of 429806680 in words is "four hundred twenty-nine million, eight hundred six thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 29 40 53 58 106 116 145 212 232 265 290 424 530 580 1060 1160 1537 2120 3074 6148 6991 7685 12296 13982 15370 27964 30740 34955 55928 61480 69910 139820 202739 279640 370523 405478 741046 810956 1013695 1482092 1621912 1852615 2027390 2964184 3705230 4054780 7410460 8109560 10745167 14820920 21490334 42980668 53725835 85961336 107451670 214903340 429806680