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42160723990 = 2571183659689
BaseRepresentation
bin100111010000111110…
…011001100000010110
311000211020211200120221
4213100332121200112
51142321121131430
631211322344554
73021532145440
oct472076314026
9130736750527
1042160723990
11169756a1a50
12820765b15a
133c8b911a78
14207d543490
15116b54657a
hex9d0f99816

42160723990 has 64 divisors (see below), whose sum is σ = 95755322880. Its totient is φ = 12982659840.

The previous prime is 42160723973. The next prime is 42160724003. The reversal of 42160723990 is 9932706124.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 265935 + ... + 393754.

It is an arithmetic number, because the mean of its divisors is an integer number (1496176920).

Almost surely, 242160723990 is an apocalyptic number.

42160723990 is an abundant number, since it is smaller than the sum of its proper divisors (53594598890).

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

42160723990 is a wasteful number, since it uses less digits than its factorization.

42160723990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659797.

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 42160723990 in words is "forty-two billion, one hundred sixty million, seven hundred twenty-three thousand, nine hundred ninety".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 83 110 154 166 385 415 581 770 830 913 1162 1826 2905 4565 5810 6391 9130 12782 31955 63910 659689 1319378 3298445 4617823 6596890 7256579 9235646 14513158 23089115 36282895 46178230 50796053 54754187 72565790 101592106 109508374 253980265 273770935 383279309 507960530 547541870 602296057 766558618 1204592114 1916396545 3011480285 3832793090 4216072399 6022960570 8432144798 21080361995 42160723990