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1420441254 = 2321917923203
BaseRepresentation
bin101010010101010…
…0011011010100110
310122222210220002100
41110222203122212
510402113110004
6352540552530
750125360101
oct12452433246
93588726070
101420441254
116698905a1
12337852746
131983879ab
14d6913738
1584a81739
hex54aa36a6

1420441254 has 48 divisors (see below), whose sum is σ = 3257841600. Its totient is φ = 446035248.

The previous prime is 1420441249. The next prime is 1420441259. The reversal of 1420441254 is 4521440241.

It is an interprime number because it is at equal distance from previous prime (1420441249) and next prime (1420441259).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420441259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49617 + ... + 72819.

It is an arithmetic number, because the mean of its divisors is an integer number (67871700).

Almost surely, 21420441254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1420441254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1628920800).

1420441254 is an abundant number, since it is smaller than the sum of its proper divisors (1837400346).

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

1420441254 is a wasteful number, since it uses less digits than its factorization.

1420441254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23409 (or 23406 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 1420441254 is about 37688.7417407374. The cubic root of 1420441254 is about 1124.1072763751.

Adding to 1420441254 its reverse (4521440241), we get a palindrome (5941881495).

The spelling of 1420441254 in words is "one billion, four hundred twenty million, four hundred forty-one thousand, two hundred fifty-four".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 179 342 358 537 1074 1611 3222 3401 6802 10203 20406 23203 30609 46406 61218 69609 139218 208827 417654 440857 881714 1322571 2645142 3967713 4153337 7935426 8306674 12460011 24920022 37380033 74760066 78913403 157826806 236740209 473480418 710220627 1420441254