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2031424451 = 72931322807
BaseRepresentation
bin111100100010101…
…0001001111000011
312020120111001110122
41321011101033003
513130021040301
6533324250455
7101224552160
oct17105211703
95216431418
102031424451
11952760291
124883a0a2b
13264b2a804
14153b19067
15bd51d81b
hex791513c3

2031424451 has 16 divisors (see below), whose sum is σ = 2479165440. Its totient is φ = 1626942240.

The previous prime is 2031424411. The next prime is 2031424453. The reversal of 2031424451 is 1544241302.

It is a de Polignac number, because none of the positive numbers 2k-2031424451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2031424451.

It is not an unprimeable number, because it can be changed into a prime (2031424453) 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, 155111 + ... + 167696.

It is an arithmetic number, because the mean of its divisors is an integer number (154947840).

Almost surely, 22031424451 is an apocalyptic number.

2031424451 is a deficient number, since it is larger than the sum of its proper divisors (447740989).

2031424451 is a wasteful number, since it uses less digits than its factorization.

2031424451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322874.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 2031424451 is about 45071.3262618264. The cubic root of 2031424451 is about 1266.4855094648.

Adding to 2031424451 its reverse (1544241302), we get a palindrome (3575665753).

The spelling of 2031424451 in words is "two billion, thirty-one million, four hundred twenty-four thousand, four hundred fifty-one".

Divisors: 1 7 29 31 203 217 899 6293 322807 2259649 9361403 10007017 65529821 70049119 290203493 2031424451