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542272120 = 235131761343
BaseRepresentation
bin100000010100100…
…110101001111000
31101210101021111121
4200110212221320
52102310201440
6125450435024
716303144165
oct4024465170
91353337447
10542272120
1125910a085
12131732a74
1388465ba0
145203b06c
153291834a
hex20526a78

542272120 has 64 divisors (see below), whose sum is σ = 1391281920. Its totient is φ = 188442624.

The previous prime is 542272099. The next prime is 542272123. The reversal of 542272120 is 21272245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542272123) 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, 21832 + ... + 39511.

It is an arithmetic number, because the mean of its divisors is an integer number (21738780).

Almost surely, 2542272120 is an apocalyptic number.

It is an amenable number.

542272120 is an abundant number, since it is smaller than the sum of its proper divisors (849009800).

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

542272120 is a wasteful number, since it uses less digits than its factorization.

542272120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61384 (or 61380 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 542272120 is about 23286.7369976989. The cubic root of 542272120 is about 815.4658132300.

The spelling of 542272120 in words is "five hundred forty-two million, two hundred seventy-two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 13 17 20 26 34 40 52 65 68 85 104 130 136 170 221 260 340 442 520 680 884 1105 1768 2210 4420 8840 61343 122686 245372 306715 490744 613430 797459 1042831 1226860 1594918 2085662 2453720 3189836 3987295 4171324 5214155 6379672 7974590 8342648 10428310 13556803 15949180 20856620 27113606 31898360 41713240 54227212 67784015 108454424 135568030 271136060 542272120