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8501427970 = 2572102116993
BaseRepresentation
bin1111110101011100…
…10111111100000010
3210221110221021202121
413322232113330002
5114402331143340
63523331034454
7420446642200
oct77256277402
923843837677
108501427970
11367291a732
12179313ba2a
13a563a8169
145a9112070
1534b54694a
hex1fab97f02

8501427970 has 48 divisors (see below), whose sum is σ = 17819432568. Its totient is φ = 2911749120.

The previous prime is 8501427967. The next prime is 8501427971. The reversal of 8501427970 is 797241058.

It can be written as a sum of positive squares in 4 ways, for example, as 5598481329 + 2902946641 = 74823^2 + 53879^2 .

It is not an unprimeable number, because it can be changed into a prime (8501427971) 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, 491794 + ... + 508786.

Almost surely, 28501427970 is an apocalyptic number.

8501427970 is an abundant number, since it is smaller than the sum of its proper divisors (9318004598).

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

8501427970 is a wasteful number, since it uses less digits than its factorization.

8501427970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18035 (or 18028 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 8501427970 is about 92203.1885023506. The cubic root of 8501427970 is about 2040.9418285014.

The spelling of 8501427970 in words is "eight billion, five hundred one million, four hundred twenty-seven thousand, nine hundred seventy".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 1021 2042 5105 7147 10210 14294 16993 33986 35735 50029 71470 84965 100058 118951 169930 237902 250145 500290 594755 832657 1189510 1665314 4163285 8326570 17349853 34699706 86749265 121448971 173498530 242897942 607244855 850142797 1214489710 1700285594 4250713985 8501427970