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2231400451 = 71916777447
BaseRepresentation
bin1000010100000000…
…0111100000000011
312202111202212222011
42011000013200003
514032214303301
61005230353351
7106203406450
oct20500074003
95674685864
102231400451
11a45627205
1252335b857
132973a6bc7
141724d2827
15d0d70a51
hex85007803

2231400451 has 8 divisors (see below), whose sum is σ = 2684391680. Its totient is φ = 1811964168.

The previous prime is 2231400449. The next prime is 2231400481. The reversal of 2231400451 is 1540041322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2231400451 - 21 = 2231400449 is a prime.

It is a super-3 number, since 3×22314004513 (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2231400481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8388591 + ... + 8388856.

It is an arithmetic number, because the mean of its divisors is an integer number (335548960).

Almost surely, 22231400451 is an apocalyptic number.

2231400451 is a deficient number, since it is larger than the sum of its proper divisors (452991229).

2231400451 is a wasteful number, since it uses less digits than its factorization.

2231400451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16777473.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2231400451 is about 47237.7015846453. The cubic root of 2231400451 is about 1306.7499901817.

Adding to 2231400451 its reverse (1540041322), we get a palindrome (3771441773).

The spelling of 2231400451 in words is "two billion, two hundred thirty-one million, four hundred thousand, four hundred fifty-one".

Divisors: 1 7 19 133 16777447 117442129 318771493 2231400451