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42640871152 = 24111731400449
BaseRepresentation
bin100111101101100110…
…000000111011110000
311002001201022200200011
4213231212000323300
51144312030334102
631331113504304
73036452265415
oct475546007360
9132051280604
1042640871152
11170a1729690
128320412094
134037235709
1420c720c10c
15119878c2d7
hex9ed980ef0

42640871152 has 40 divisors (see below), whose sum is σ = 90648327600. Its totient is φ = 19270164480.

The previous prime is 42640871131. The next prime is 42640871153. The reversal of 42640871152 is 25117804624.

42640871152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42640871153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669777 + ... + 730672.

It is an arithmetic number, because the mean of its divisors is an integer number (2266208190).

Almost surely, 242640871152 is an apocalyptic number.

It is an amenable number.

42640871152 is an abundant number, since it is smaller than the sum of its proper divisors (48007456448).

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

42640871152 is a wasteful number, since it uses less digits than its factorization.

42640871152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400641 (or 1400635 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 42640871152 in words is "forty-two billion, six hundred forty million, eight hundred seventy-one thousand, one hundred fifty-two".

Divisors: 1 2 4 8 11 16 22 44 88 173 176 346 692 1384 1903 2768 3806 7612 15224 30448 1400449 2800898 5601796 11203592 15404939 22407184 30809878 61619756 123239512 242277677 246479024 484555354 969110708 1938221416 2665054447 3876442832 5330108894 10660217788 21320435576 42640871152