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12202012412 = 22171094193929
BaseRepresentation
bin10110101110100101…
…11110111011111100
31011111101020110021122
423113102332323330
5144442203344122
65334443250112
7611243252132
oct132722767374
934441213248
1012202012412
1151a1799587
122446519938
1311c5c74ab5
1483a7a5752
154b6376142
hex2d74beefc

12202012412 has 48 divisors (see below), whose sum is σ = 22877316000. Its totient is φ = 5674420224.

The previous prime is 12202012411. The next prime is 12202012457. The reversal of 12202012412 is 21421020221.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202012411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3103664 + ... + 3107592.

It is an arithmetic number, because the mean of its divisors is an integer number (476610750).

Almost surely, 212202012412 is an apocalyptic number.

It is an amenable number.

12202012412 is a deficient number, since it is larger than the sum of its proper divisors (10675303588).

12202012412 is a wasteful number, since it uses less digits than its factorization.

12202012412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4478 (or 4476 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12202012412 its reverse (21421020221), we get a palindrome (33623032633).

The spelling of 12202012412 in words is "twelve billion, two hundred two million, twelve thousand, four hundred twelve".

Divisors: 1 2 4 17 34 68 109 218 419 436 838 1676 1853 3706 3929 7123 7412 7858 14246 15716 28492 45671 66793 91342 133586 182684 267172 428261 776407 856522 1552814 1646251 1713044 3105628 3292502 6585004 7280437 14560874 27986267 29121748 55972534 111945068 179441359 358882718 717765436 3050503103 6101006206 12202012412