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49418468920 = 2351783875593
BaseRepresentation
bin101110000001100100…
…011111111000111000
311201120001120022221201
4232001210133320320
51302202112001140
634411425143544
73366431024602
oct560144377070
9151501508851
1049418468920
1119a5a48a157
1296b218abb4
13487743c6b2
14256b3d4172
1514437c449a
hexb8191fe38

49418468920 has 64 divisors (see below), whose sum is σ = 119150831520. Its totient is φ = 18380427264.

The previous prime is 49418468861. The next prime is 49418468921. The reversal of 49418468920 is 2986481494.

It is a happy number.

49418468920 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 (49418468921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381357 + ... + 494236.

Almost surely, 249418468920 is an apocalyptic number.

49418468920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49418468920 is an abundant number, since it is smaller than the sum of its proper divisors (69732362600).

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

49418468920 is a wasteful number, since it uses less digits than its factorization.

49418468920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875704 (or 875700 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 55.

The spelling of 49418468920 in words is "forty-nine billion, four hundred eighteen million, four hundred sixty-eight thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 83 85 136 166 170 332 340 415 664 680 830 1411 1660 2822 3320 5644 7055 11288 14110 28220 56440 875593 1751186 3502372 4377965 7004744 8755930 14885081 17511860 29770162 35023720 59540324 72674219 74425405 119080648 145348438 148850810 290696876 297701620 363371095 581393752 595403240 726742190 1235461723 1453484380 2470923446 2906968760 4941846892 6177308615 9883693784 12354617230 24709234460 49418468920