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420052014 = 233172511823
BaseRepresentation
bin11001000010010…
…111110000101110
31002021101212001000
4121002113300232
51330013131024
6105403101130
713260245304
oct3102276056
91067355030
10420052014
111a6121328
12b88117a6
13690425b5
143db04274
1526d24cc9
hex19097c2e

420052014 has 64 divisors (see below), whose sum is σ = 992839680. Its totient is φ = 131184000.

The previous prime is 420051991. The next prime is 420052021. The reversal of 420052014 is 410250024.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229507 + ... + 231329.

It is an arithmetic number, because the mean of its divisors is an integer number (15513120).

Almost surely, 2420052014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420052014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (496419840).

420052014 is an abundant number, since it is smaller than the sum of its proper divisors (572787666).

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

420052014 is a wasteful number, since it uses less digits than its factorization.

420052014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102 (or 2096 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 420052014 is about 20495.1705042920. The cubic root of 420052014 is about 748.9181522242.

The spelling of 420052014 in words is "four hundred twenty million, fifty-two thousand, fourteen".

Divisors: 1 2 3 6 9 17 18 27 34 51 54 102 153 251 306 459 502 753 918 1506 1823 2259 3646 4267 4518 5469 6777 8534 10938 12801 13554 16407 25602 30991 32814 38403 49221 61982 76806 92973 98442 115209 185946 230418 278919 457573 557838 836757 915146 1372719 1673514 2745438 4118157 7778741 8236314 12354471 15557482 23336223 24708942 46672446 70008669 140017338 210026007 420052014