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1024434020 = 225196740237
BaseRepresentation
bin111101000011111…
…001111101100100
32122101122122021202
4331003321331210
54044223342040
6245353102032
734246355051
oct7503717544
92571578252
101024434020
114862a2495
122470b7918
1313431389c
149a0ac028
155ee0b015
hex3d0f9f64

1024434020 has 48 divisors (see below), whose sum is σ = 2298394560. Its totient is φ = 382402944.

The previous prime is 1024434013. The next prime is 1024434023. The reversal of 1024434020 is 204344201.

It is a super-2 number, since 2×10244340202 = 2098930122666720800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1024433983 and 1024434001.

It is not an unprimeable number, because it can be changed into a prime (1024434023) 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, 5342 + ... + 45578.

It is an arithmetic number, because the mean of its divisors is an integer number (47883220).

Almost surely, 21024434020 is an apocalyptic number.

1024434020 is a gapful number since it is divisible by the number (10) 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 1024434020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1149197280).

1024434020 is an abundant number, since it is smaller than the sum of its proper divisors (1273960540).

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

1024434020 is a wasteful number, since it uses less digits than its factorization.

1024434020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40332 (or 40330 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1024434020 is about 32006.7808440649. The cubic root of 1024434020 is about 1008.0792236905.

Adding to 1024434020 its reverse (204344201), we get a palindrome (1228778221).

The spelling of 1024434020 in words is "one billion, twenty-four million, four hundred thirty-four thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 67 76 95 134 190 268 335 380 670 1273 1340 2546 5092 6365 12730 25460 40237 80474 160948 201185 402370 764503 804740 1529006 2695879 3058012 3822515 5391758 7645030 10783516 13479395 15290060 26958790 51221701 53917580 102443402 204886804 256108505 512217010 1024434020