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1220303012232 = 2331910092652233
BaseRepresentation
bin10001110000011111101…
…110100100000110001000
311022122211000101222212110
4101300133232210012020
5124443140032342412
62332333252342320
7154110150313353
oct21603756440610
94278730358773
101220303012232
11430589267747
121786050149a0
138b0c69a6505
14430c4b6929a
1521b2235cd3c
hex11c1fba4188

1220303012232 has 64 divisors (see below), whose sum is σ = 3214507608000. Its totient is φ = 384976779264.

The previous prime is 1220303012197. The next prime is 1220303012297. The reversal of 1220303012232 is 2322103030221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1220303012199 and 1220303012208.

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, 866013 + ... + 1786220.

It is an arithmetic number, because the mean of its divisors is an integer number (50226681375).

Almost surely, 21220303012232 is an apocalyptic number.

1220303012232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220303012232 is an abundant number, since it is smaller than the sum of its proper divisors (1994204595768).

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

1220303012232 is a wasteful number, since it uses less digits than its factorization.

1220303012232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2653270 (or 2653266 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1220303012232 its reverse (2322103030221), we get a palindrome (3542406042453).

The spelling of 1220303012232 in words is "one trillion, two hundred twenty billion, three hundred three million, twelve thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 456 1009 2018 3027 4036 6054 8072 12108 19171 24216 38342 57513 76684 115026 153368 230052 460104 2652233 5304466 7956699 10608932 15913398 21217864 31826796 50392427 63653592 100784854 151177281 201569708 302354562 403139416 604709124 1209418248 2676103097 5352206194 8028309291 10704412388 16056618582 21408824776 32113237164 50845958843 64226474328 101691917686 152537876529 203383835372 305075753058 406767670744 610151506116 1220303012232