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145642856086 = 27131979914099
BaseRepresentation
bin1000011110100011111…
…1011001111010010110
3111220221002201200002001
42013220333121322112
54341234032343321
6150523555505514
713344110564530
oct2075077317226
9456832650061
10145642856086
1156848660472
12242875b829a
1310970972cb0
147098c30850
153bc630dc91
hex21e8fd9e96

145642856086 has 64 divisors (see below), whose sum is σ = 270582681600. Its totient is φ = 57252666240.

The previous prime is 145642856077. The next prime is 145642856087. The reversal of 145642856086 is 680658246541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145642856087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35529265 + ... + 35533363.

It is an arithmetic number, because the mean of its divisors is an integer number (4227854400).

Almost surely, 2145642856086 is an apocalyptic number.

145642856086 is a deficient number, since it is larger than the sum of its proper divisors (124939825514).

145642856086 is a wasteful number, since it uses less digits than its factorization.

145642856086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5309.

The product of its (nonzero) digits is 11059200, while the sum is 55.

The spelling of 145642856086 in words is "one hundred forty-five billion, six hundred forty-two million, eight hundred fifty-six thousand, eighty-six".

Divisors: 1 2 7 13 14 26 91 182 197 394 991 1379 1982 2561 2758 4099 5122 6937 8198 12883 13874 17927 25766 28693 35854 53287 57386 90181 106574 180362 195227 373009 390454 746018 807503 1366589 1615006 2537951 2733178 4062109 5075902 5652521 8124218 10497539 11305042 17765657 20995078 28434763 35531314 52807417 56869526 73482773 105614834 146965546 369651919 739303838 800235473 1600470946 5601648311 10403061149 11203296622 20806122298 72821428043 145642856086