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2030154021 = 327831991951
BaseRepresentation
bin111100100000001…
…1011000100100101
312020111002111202200
41321000123010211
513124204412041
6533241125113
7101211011250
oct17100330445
95214074680
102030154021
11951a72845
12487a89799
132647a448c
141538a8097
15bd36c1b6
hex7901b125

2030154021 has 48 divisors (see below), whose sum is σ = 3410534400. Its totient is φ = 1139767200.

The previous prime is 2030154011. The next prime is 2030154067. The reversal of 2030154021 is 1204510302.

It is not a de Polignac number, because 2030154021 - 25 = 2030153989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2030153985 and 2030154003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2030154011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1039596 + ... + 1041546.

It is an arithmetic number, because the mean of its divisors is an integer number (71052800).

Almost surely, 22030154021 is an apocalyptic number.

2030154021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2030154021 is a deficient number, since it is larger than the sum of its proper divisors (1380380379).

2030154021 is a wasteful number, since it uses less digits than its factorization.

2030154021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246 (or 2243 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2030154021 is about 45057.2305074335. The cubic root of 2030154021 is about 1266.2214391446.

Adding to 2030154021 its reverse (1204510302), we get a palindrome (3234664323).

The spelling of 2030154021 in words is "two billion, thirty million, one hundred fifty-four thousand, twenty-one".

Divisors: 1 3 7 9 21 63 83 199 249 581 597 747 1393 1743 1791 1951 4179 5229 5853 12537 13657 16517 17559 40971 49551 115619 122913 148653 161933 346857 388249 485799 1040571 1133531 1164747 1457397 2717743 3400593 3494241 8153229 10201779 24459687 32224667 96674001 225572669 290022003 676718007 2030154021