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1954197368416 = 251091376316481
BaseRepresentation
bin11100011011111111001…
…111010110111001100000
320220211010101010002100201
4130123333033112321200
5224004144011242131
64053425035354544
7261120555363016
oct34337717267140
96824111102321
101954197368416
11693852517857
122768a08b2a54
1311238428b5c7
146a8257ac8b6
1535c76d97761
hex1c6ff3d6e60

1954197368416 has 96 divisors (see below), whose sum is σ = 3917765396160. Its totient is φ = 959396659200.

The previous prime is 1954197368401. The next prime is 1954197368419. The reversal of 1954197368416 is 6148637914591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1954197368419) 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, 301523896 + ... + 301530376.

It is an arithmetic number, because the mean of its divisors is an integer number (40810056210).

Almost surely, 21954197368416 is an apocalyptic number.

1954197368416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1954197368416 is an abundant number, since it is smaller than the sum of its proper divisors (1963568027744).

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

1954197368416 is a wasteful number, since it uses less digits than its factorization.

1954197368416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7368 (or 7360 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 64.

The spelling of 1954197368416 in words is "one trillion, nine hundred fifty-four billion, one hundred ninety-seven million, three hundred sixty-eight thousand, four hundred sixteen".

Divisors: 1 2 4 8 16 32 109 137 218 274 436 548 631 872 1096 1262 1744 2192 2524 3488 4384 5048 6481 10096 12962 14933 20192 25924 29866 51848 59732 68779 86447 103696 119464 137558 172894 207392 238928 275116 345788 477856 550232 691576 706429 887897 1100464 1383152 1412858 1775794 2200928 2766304 2825716 3551588 4089511 5651432 7103176 8179022 9422723 11302864 14206352 16358044 18845446 22605728 28412704 32716088 37690892 65432176 75381784 96780773 130864352 150763568 193561546 301527136 387123092 445756699 560263007 774246184 891513398 1120526014 1548492368 1783026796 2241052028 3096984736 3566053592 4482104056 7132107184 8964208112 14264214368 17928416224 61068667763 122137335526 244274671052 488549342104 977098684208 1954197368416