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2231403012 = 223320661139
BaseRepresentation
bin1000010100000000…
…1000001000000100
312202111210000111000
42011000020020010
514032214344022
61005230413300
7106203420066
oct20500101004
95674700430
102231403012
11a45629123
12523361230
132973a8117
141724d3736
15d0d716ac
hex85008204

2231403012 has 24 divisors (see below), whose sum is σ = 5785119200. Its totient is φ = 743800968.

The previous prime is 2231402989. The next prime is 2231403047. The reversal of 2231403012 is 2103041322.

2231403012 is a `hidden beast` number, since 223 + 140 + 301 + 2 = 666.

It is a super-3 number, since 3×22314030123 (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10330462 + ... + 10330677.

Almost surely, 22231403012 is an apocalyptic number.

It is an amenable number.

2231403012 is an abundant number, since it is smaller than the sum of its proper divisors (3553716188).

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

2231403012 is a wasteful number, since it uses less digits than its factorization.

2231403012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20661152 (or 20661144 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2231403012 is about 47237.7286922223. The cubic root of 2231403012 is about 1306.7504901048.

Adding to 2231403012 its reverse (2103041322), we get a palindrome (4334444334).

The spelling of 2231403012 in words is "two billion, two hundred thirty-one million, four hundred three thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 20661139 41322278 61983417 82644556 123966834 185950251 247933668 371900502 557850753 743801004 1115701506 2231403012