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2029931212 = 222931564497
BaseRepresentation
bin111100011111110…
…0100101011001100
312020110200012010111
41320333210223030
513124130244322
6533232245404
7101206062541
oct17077445314
95213605114
102029931212
11951930401
124879a0864
13264726c3a
1415384abc8
15bd326177
hex78fe4acc

2029931212 has 24 divisors (see below), whose sum is σ = 3793426560. Its totient is φ = 948353280.

The previous prime is 2029931161. The next prime is 2029931219. The reversal of 2029931212 is 2121399202.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (2029931219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278653 + ... + 285844.

It is an arithmetic number, because the mean of its divisors is an integer number (158059440).

Almost surely, 22029931212 is an apocalyptic number.

It is an amenable number.

2029931212 is a deficient number, since it is larger than the sum of its proper divisors (1763495348).

2029931212 is a wasteful number, since it uses less digits than its factorization.

2029931212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564561 (or 564559 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 2029931212 is about 45054.7579285473. The cubic root of 2029931212 is about 1266.1751149329.

The spelling of 2029931212 in words is "two billion, twenty-nine million, nine hundred thirty-one thousand, two hundred twelve".

Divisors: 1 2 4 29 31 58 62 116 124 899 1798 3596 564497 1128994 2257988 16370413 17499407 32740826 34998814 65481652 69997628 507482803 1014965606 2029931212