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2920729212 = 223349155079
BaseRepresentation
bin1010111000010110…
…1100101001111100
321112112212102021000
42232011230221330
521440201313322
61201453210300
7132243534342
oct25605545174
97475772230
102920729212
1112697480a5
12696190990
1337714b04b
141d9c8d992
151216363ac
hexae16ca7c

2920729212 has 48 divisors (see below), whose sum is σ = 7587820800. Its totient is φ = 971575920.

The previous prime is 2920729181. The next prime is 2920729223. The reversal of 2920729212 is 2129270292.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25489 + ... + 80567.

It is an arithmetic number, because the mean of its divisors is an integer number (158079600).

Almost surely, 22920729212 is an apocalyptic number.

It is an amenable number.

2920729212 is an abundant number, since it is smaller than the sum of its proper divisors (4667091588).

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

2920729212 is a wasteful number, since it uses less digits than its factorization.

2920729212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55583 (or 55575 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 2920729212 is about 54043.7712599704. The cubic root of 2920729212 is about 1429.4328707787.

The spelling of 2920729212 in words is "two billion, nine hundred twenty million, seven hundred twenty-nine thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 491 982 1473 1964 2946 4419 5892 8838 13257 17676 26514 53028 55079 110158 165237 220316 330474 495711 660948 991422 1487133 1982844 2974266 5948532 27043789 54087578 81131367 108175156 162262734 243394101 324525468 486788202 730182303 973576404 1460364606 2920729212