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970920 = 233352931
BaseRepresentation
bin11101101000010101000
31211022212000
43231002220
5222032140
632451000
711152446
oct3550250
91738760
10970920
11603515
123a9a60
1327cc12
141b3b96
15142a30
hexed0a8

970920 has 128 divisors (see below), whose sum is σ = 3456000. Its totient is φ = 241920.

The previous prime is 970909. The next prime is 970927. The reversal of 970920 is 29079.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (970927) by changing a digit.

970920 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31305 + ... + 31335.

It is an arithmetic number, because the mean of its divisors is an integer number (27000).

2970920 is an apocalyptic number.

970920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 970920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1728000).

970920 is an abundant number, since it is smaller than the sum of its proper divisors (2485080).

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

970920 is a wasteful number, since it uses less digits than its factorization.

970920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 970920 is about 985.3527287221. The cubic root of 970920 is about 99.0211157897.

Adding to 970920 its reverse (29079), we get a palindrome (999999).

The spelling of 970920 in words is "nine hundred seventy thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 29 30 31 36 40 45 54 58 60 62 72 87 90 93 108 116 120 124 135 145 155 174 180 186 216 232 248 261 270 279 290 310 348 360 372 435 465 522 540 558 580 620 696 744 783 837 870 899 930 1044 1080 1116 1160 1240 1305 1395 1566 1674 1740 1798 1860 2088 2232 2610 2697 2790 3132 3348 3480 3596 3720 3915 4185 4495 5220 5394 5580 6264 6696 7192 7830 8091 8370 8990 10440 10788 11160 13485 15660 16182 16740 17980 21576 24273 26970 31320 32364 33480 35960 40455 48546 53940 64728 80910 97092 107880 121365 161820 194184 242730 323640 485460 970920