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42165456124 = 221123173137281
BaseRepresentation
bin100111010001010000…
…011100110011111100
311000211120202002212011
4213101100130303330
51142323324043444
631212012021004
73021620314651
oct472120346374
9130746662764
1042165456124
1116978334300
128209161764
133c8c8aa94c
142080015c28
15116bb7d734
hex9d141ccfc

42165456124 has 144 divisors (see below), whose sum is σ = 85794524928. Its totient is φ = 18095616000.

The previous prime is 42165456121. The next prime is 42165456161.

42165456124 is nontrivially palindromic in base 10.

42165456124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42165456121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 150054864 + ... + 150055144.

It is an arithmetic number, because the mean of its divisors is an integer number (595795312).

Almost surely, 242165456124 is an apocalyptic number.

42165456124 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42165456124 is an abundant number, since it is smaller than the sum of its proper divisors (43629068804).

42165456124 is a wasteful number, since it uses less digits than its factorization.

42165456124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548 (or 535 counting only the distinct ones).

The product of its digits is 230400, while the sum is 40.

The spelling of 42165456124 in words is "forty-two billion, one hundred sixty-five million, four hundred fifty-six thousand, one hundred twenty-four".

Divisors: 1 2 4 11 22 31 44 62 73 121 124 137 146 242 274 281 292 341 484 548 562 682 803 1124 1364 1507 1606 2263 3014 3091 3212 3751 4247 4526 6028 6182 7502 8494 8711 8833 9052 10001 12364 15004 16577 16988 17422 17666 20002 20513 24893 33154 34001 34844 35332 38497 40004 41026 46717 49786 66308 68002 76994 82052 93434 95821 99572 110011 136004 153988 186868 191642 220022 225643 273823 310031 383284 423467 440044 451286 513887 547646 620062 635903 846934 902572 1027774 1054031 1095292 1193407 1210121 1240124 1271806 1693868 2055548 2108062 2386814 2420242 2482073 2543612 2810281 3410341 4216124 4658137 4773628 4840484 4964146 5620562 6820682 6994933 9316274 9928292 11241124 13127477 13641364 13989866 18632548 26254954 27979732 30913091 37513751 52509908 61826182 75027502 76944263 87118711 123652364 144402247 150055004 153888526 174237422 288804494 307777052 340044001 348474844 577608988 680088002 958305821 1360176004 1916611642 3833223284 10541364031 21082728062 42165456124