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652842972 = 2232472411601
BaseRepresentation
bin100110111010011…
…001011111011100
31200111102212012100
4212322121133130
52314111433342
6144440405100
722115034165
oct4672313734
91614385170
10652842972
11305570651
12162776790
13a533b022
14629c076c
153c4a9e4c
hex26e997dc

652842972 has 72 divisors (see below), whose sum is σ = 1693403712. Its totient is φ = 211968000.

The previous prime is 652842901. The next prime is 652842973. The reversal of 652842972 is 279248256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652842973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 406972 + ... + 408572.

It is an arithmetic number, because the mean of its divisors is an integer number (23519496).

Almost surely, 2652842972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 652842972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (846701856).

652842972 is an abundant number, since it is smaller than the sum of its proper divisors (1040560740).

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

652842972 is a wasteful number, since it uses less digits than its factorization.

652842972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899 (or 1894 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 652842972 is about 25550.7920033802. The cubic root of 652842972 is about 867.5001883026.

The spelling of 652842972 in words is "six hundred fifty-two million, eight hundred forty-two thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 36 47 94 141 188 241 282 423 482 564 723 846 964 1446 1601 1692 2169 2892 3202 4338 4803 6404 8676 9606 11327 14409 19212 22654 28818 33981 45308 57636 67962 75247 101943 135924 150494 203886 225741 300988 385841 407772 451482 677223 771682 902964 1157523 1354446 1543364 2315046 2708892 3472569 4630092 6945138 13890276 18134527 36269054 54403581 72538108 108807162 163210743 217614324 326421486 652842972