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159005355640 = 23531112781781
BaseRepresentation
bin1001010000010101110…
…1010010111001111000
3120012102100121222102221
42110011131102321320
510101120332340030
6201013540333424
714326205136265
oct2240535227170
9505370558387
10159005355640
116148541812a
12269966a4274
1311cc0186371
1479a579c26c
1542094b7e7a
hex2505752e78

159005355640 has 32 divisors (see below), whose sum is σ = 358912438560. Its totient is φ = 63397628800.

The previous prime is 159005355611. The next prime is 159005355683. The reversal of 159005355640 is 46553500951.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6378451 + ... + 6403330.

It is an arithmetic number, because the mean of its divisors is an integer number (11216013705).

Almost surely, 2159005355640 is an apocalyptic number.

159005355640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159005355640 is an abundant number, since it is smaller than the sum of its proper divisors (199907082920).

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

159005355640 is a wasteful number, since it uses less digits than its factorization.

159005355640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12782103 (or 12782099 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 43.

The spelling of 159005355640 in words is "one hundred fifty-nine billion, five million, three hundred fifty-five thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 20 40 311 622 1244 1555 2488 3110 6220 12440 12781781 25563562 51127124 63908905 102254248 127817810 255635620 511271240 3975133891 7950267782 15900535564 19875669455 31801071128 39751338910 79502677820 159005355640