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12019937455 = 561190120731
BaseRepresentation
bin10110011000111000…
…11011000010101111
31011000200122002101201
423030130123002233
5144104100444310
65304420550331
7603602532301
oct131434330257
934020562351
1012019937455
115108a39a09
1223b55523a7
131197325636
1482052b971
154a53ace3a
hex2cc71b0af

12019937455 has 16 divisors (see below), whose sum is σ = 14668802208. Its totient is φ = 9452880000.

The previous prime is 12019937443. The next prime is 12019937473. The reversal of 12019937455 is 55473991021.

It is a de Polignac number, because none of the positive numbers 2k-12019937455 is a prime.

It is a super-2 number, since 2×120199374552 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 569440 + ... + 590170.

It is an arithmetic number, because the mean of its divisors is an integer number (916800138).

Almost surely, 212019937455 is an apocalyptic number.

12019937455 is a deficient number, since it is larger than the sum of its proper divisors (2648864753).

12019937455 is a wasteful number, since it uses less digits than its factorization.

12019937455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22698.

The product of its (nonzero) digits is 340200, while the sum is 46.

The spelling of 12019937455 in words is "twelve billion, nineteen million, nine hundred thirty-seven thousand, four hundred fifty-five".

Divisors: 1 5 61 305 1901 9505 20731 103655 115961 579805 1264591 6322955 39409631 197048155 2403987491 12019937455