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2215155156160 = 26517407197639
BaseRepresentation
bin100000001111000001100…
…010010100010011000000
321211202200222020020101111
4200033001202110103000
5242243114204444120
64413343410413104
7316016416104562
oct40170142242300
97752628206344
102215155156160
11784495378131
122b938ab91194
13130b715b536b
14792dd623332
153c94bbb375a
hex203c18944c0

2215155156160 has 56 divisors (see below), whose sum is σ = 5585122830240. Its totient is φ = 833940762624.

The previous prime is 2215155156119. The next prime is 2215155156161. The reversal of 2215155156160 is 616515515122.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (2215155156161) 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 7 ways as a sum of consecutive naturals, for example, 203593380 + ... + 203604259.

Almost surely, 22215155156160 is an apocalyptic number.

2215155156160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2215155156160 is an abundant number, since it is smaller than the sum of its proper divisors (3369967674080).

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

2215155156160 is a wasteful number, since it uses less digits than its factorization.

2215155156160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407197673 (or 407197663 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 40.

The spelling of 2215155156160 in words is "two trillion, two hundred fifteen billion, one hundred fifty-five million, one hundred fifty-six thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 17 20 32 34 40 64 68 80 85 136 160 170 272 320 340 544 680 1088 1360 2720 5440 407197639 814395278 1628790556 2035988195 3257581112 4071976390 6515162224 6922359863 8143952780 13030324448 13844719726 16287905560 26060648896 27689439452 32575811120 34611799315 55378878904 65151622240 69223598630 110757757808 130303244480 138447197260 221515515616 276894394520 443031031232 553788789040 1107577578080 2215155156160