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971630132 = 2211195321929
BaseRepresentation
bin111001111010011…
…110011000110100
32111201021220222012
4321322132120310
53442214131012
6240225223352
733035501624
oct7172363064
92451256865
10971630132
11459507110
12231491b58
131263b6195
1493084884
155a47a622
hex39e9e634

971630132 has 48 divisors (see below), whose sum is σ = 1989489600. Its totient is φ = 410492160.

The previous prime is 971630131. The next prime is 971630141. The reversal of 971630132 is 231036179.

It is a happy number.

It is a super-2 number, since 2×9716301322 = 1888130226820674848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971630131) by changing a digit.

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, 33344 + ... + 55272.

It is an arithmetic number, because the mean of its divisors is an integer number (41447700).

Almost surely, 2971630132 is an apocalyptic number.

It is an amenable number.

971630132 is an abundant number, since it is smaller than the sum of its proper divisors (1017859468).

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

971630132 is a wasteful number, since it uses less digits than its factorization.

971630132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22016 (or 22014 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 971630132 is about 31170.9822110244. The cubic root of 971630132 is about 990.4525129227.

The spelling of 971630132 in words is "nine hundred seventy-one million, six hundred thirty thousand, one hundred thirty-two".

Divisors: 1 2 4 11 19 22 38 44 53 76 106 209 212 418 583 836 1007 1166 2014 2332 4028 11077 21929 22154 43858 44308 87716 241219 416651 482438 833302 964876 1162237 1666604 2324474 4583161 4648948 9166322 12784607 18332644 22082503 25569214 44165006 51138428 88330012 242907533 485815066 971630132