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54511850490 = 2353123475449
BaseRepresentation
bin110010110001001010…
…001101001111111010
312012201000122220221120
4302301022031033322
51343120013203430
641013054050110
73636566040546
oct626112151772
9165630586846
1054511850490
1121133578109
12a693aa9936
1351a9735446
1428d1a42a26
151640a24610
hexcb128d3fa

54511850490 has 96 divisors (see below), whose sum is σ = 135599313600. Its totient is φ = 14024459520.

The previous prime is 54511850467. The next prime is 54511850513. The reversal of 54511850490 is 9405811545.

It is an interprime number because it is at equal distance from previous prime (54511850467) and next prime (54511850513).

It is a super-2 number, since 2×545118504902 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10001286 + ... + 10006734.

It is an arithmetic number, because the mean of its divisors is an integer number (1412492850).

Almost surely, 254511850490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54511850490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67799656800).

54511850490 is an abundant number, since it is smaller than the sum of its proper divisors (81087463110).

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

54511850490 is a wasteful number, since it uses less digits than its factorization.

54511850490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5868 (or 5837 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 42.

The spelling of 54511850490 in words is "fifty-four billion, five hundred eleven million, eight hundred fifty thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 347 465 694 930 961 1041 1735 1922 2082 2883 3470 4805 5205 5449 5766 9610 10410 10757 10898 14415 16347 21514 27245 28830 32271 32694 53785 54490 64542 81735 107570 161355 163470 168919 322710 333467 337838 506757 666934 844595 1000401 1013514 1667335 1689190 1890803 2000802 2533785 3334670 3781606 5002005 5067570 5236489 5672409 9454015 10004010 10472978 11344818 15709467 18908030 26182445 28362045 31418934 52364890 56724090 58614893 78547335 117229786 157094670 175844679 293074465 351689358 586148930 879223395 1758446790 1817061683 3634123366 5451185049 9085308415 10902370098 18170616830 27255925245 54511850490