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1213000302 = 233117936433
BaseRepresentation
bin100100001001100…
…1110101001101110
310010112110210121010
41020103032221232
54441012002202
6320210450050
742026222013
oct11023165156
93115423533
101213000302
11572786098
1229a293926
131643c6877
14b715570a
157175776c
hex484cea6e

1213000302 has 32 divisors (see below), whose sum is σ = 2518318080. Its totient is φ = 389093760.

The previous prime is 1213000301. The next prime is 1213000307. The reversal of 1213000302 is 2030003121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213000301) 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, 15078 + ... + 51510.

It is an arithmetic number, because the mean of its divisors is an integer number (78697440).

Almost surely, 21213000302 is an apocalyptic number.

1213000302 is an abundant number, since it is smaller than the sum of its proper divisors (1305317778).

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

1213000302 is a wasteful number, since it uses less digits than its factorization.

1213000302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36648.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1213000302 is about 34828.1538701092. The cubic root of 1213000302 is about 1066.4822614596.

Adding to 1213000302 its reverse (2030003121), we get a palindrome (3243003423).

The spelling of 1213000302 in words is "one billion, two hundred thirteen million, three hundred two", and thus it is an aban number.

Divisors: 1 2 3 6 31 62 93 179 186 358 537 1074 5549 11098 16647 33294 36433 72866 109299 218598 1129423 2258846 3388269 6521507 6776538 13043014 19564521 39129042 202166717 404333434 606500151 1213000302