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12002101029 = 321333566781
BaseRepresentation
bin10110010110110000…
…11000011100100101
31010222110001220102100
423023120120130211
5144040014213104
65302542402313
7603265114122
oct131330303445
933873056370
1012002101029
1150a9967166
1223ab590399
13119371bc39
1481c007749
154a3a38139
hex2cb618725

12002101029 has 6 divisors (see below), whose sum is σ = 17336368166. Its totient is φ = 8001400680.

The previous prime is 12002101003. The next prime is 12002101057. The reversal of 12002101029 is 92010120021.

It can be written as a sum of positive squares in only one way, i.e., 11556680004 + 445421025 = 107502^2 + 21105^2 .

It is not a de Polignac number, because 12002101029 - 215 = 12002068261 is a prime.

It is a super-2 number, since 2×120021010292 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002101129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 666783382 + ... + 666783399.

Almost surely, 212002101029 is an apocalyptic number.

It is an amenable number.

12002101029 is a deficient number, since it is larger than the sum of its proper divisors (5334267137).

12002101029 is a wasteful number, since it uses less digits than its factorization.

12002101029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333566787 (or 1333566784 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 12002101029 in words is "twelve billion, two million, one hundred one thousand, twenty-nine".

Divisors: 1 3 9 1333566781 4000700343 12002101029