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1234031420 = 225237336749
BaseRepresentation
bin100100110001101…
…1101001100111100
310012000001021212102
41021203131030330
510011403001140
6322241324232
742403044146
oct11143351474
93160037772
101234031420
11583640086
122a5336678
1316887b40b
14b9c6bc96
157350de15
hex498dd33c

1234031420 has 48 divisors (see below), whose sum is σ = 2741256000. Its totient is φ = 465670656.

The previous prime is 1234031413. The next prime is 1234031431. The reversal of 1234031420 is 241304321.

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 = 1234031392 and 1234031401.

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, 15206 + ... + 51954.

It is an arithmetic number, because the mean of its divisors is an integer number (57109500).

Almost surely, 21234031420 is an apocalyptic number.

1234031420 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 1234031420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1370628000).

1234031420 is an abundant number, since it is smaller than the sum of its proper divisors (1507224580).

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

1234031420 is a wasteful number, since it uses less digits than its factorization.

1234031420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36854 (or 36852 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1234031420 is about 35128.7833549641. The cubic root of 1234031420 is about 1072.6105703004.

Adding to 1234031420 its reverse (241304321), we get a palindrome (1475335741).

The spelling of 1234031420 in words is "one billion, two hundred thirty-four million, thirty-one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 23 46 73 92 115 146 230 292 365 460 730 1460 1679 3358 6716 8395 16790 33580 36749 73498 146996 183745 367490 734980 845227 1690454 2682677 3380908 4226135 5365354 8452270 10730708 13413385 16904540 26826770 53653540 61701571 123403142 246806284 308507855 617015710 1234031420