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103331231212 = 221141251228203
BaseRepresentation
bin110000000111100000…
…1010111010111101100
3100212201022221102101111
41200033001113113230
53143110243344322
6115245242521404
710315433654566
oct1401701272754
9325638842344
10103331231212
113a905871450
1218039506264
139989a08281
14500364a336
152a4b90b177
hex180f0575ec

103331231212 has 48 divisors (see below), whose sum is σ = 202886135424. Its totient is φ = 45640400000.

The previous prime is 103331231203. The next prime is 103331231279. The reversal of 103331231212 is 212132133301.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338703 + ... + 566905.

It is an arithmetic number, because the mean of its divisors is an integer number (4226794488).

Almost surely, 2103331231212 is an apocalyptic number.

It is an amenable number.

103331231212 is a deficient number, since it is larger than the sum of its proper divisors (99554904212).

103331231212 is a wasteful number, since it uses less digits than its factorization.

103331231212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228510 (or 228508 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 103331231212 its reverse (212132133301), we get a palindrome (315463364513).

The spelling of 103331231212 in words is "one hundred three billion, three hundred thirty-one million, two hundred thirty-one thousand, two hundred twelve".

Divisors: 1 2 4 11 22 41 44 82 164 251 451 502 902 1004 1804 2761 5522 10291 11044 20582 41164 113201 226402 228203 452804 456406 912812 2510233 5020466 9356323 10040932 18712646 37425292 57278953 102919553 114557906 205839106 229115812 411678212 630068483 1260136966 2348437073 2520273932 4696874146 9393748292 25832807803 51665615606 103331231212