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28114560276 = 223111495632539
BaseRepresentation
bin11010001011110000…
…100010010100010100
32200120100111122022020
4122023300202110110
5430034311412101
620525440333140
72013463551015
oct321360422424
980510448266
1028114560276
1110a17a33290
1255476141b0
13286088b9aa
141509c9100c
15ae8345136
hex68bc22514

28114560276 has 96 divisors (see below), whose sum is σ = 72201024000. Its totient is φ = 8444027520.

The previous prime is 28114560263. The next prime is 28114560277. The reversal of 28114560276 is 67206541182.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28114560277) 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, 11071815 + ... + 11074353.

It is an arithmetic number, because the mean of its divisors is an integer number (752094000).

Almost surely, 228114560276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28114560276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36100512000).

28114560276 is an abundant number, since it is smaller than the sum of its proper divisors (44086463724).

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

28114560276 is a wasteful number, since it uses less digits than its factorization.

28114560276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3269 (or 3267 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 28114560276 in words is "twenty-eight billion, one hundred fourteen million, five hundred sixty thousand, two hundred seventy-six".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 149 298 447 563 596 894 1126 1639 1689 1788 2252 2539 3278 3378 4917 5078 6193 6556 6756 7617 9834 10156 12386 15234 18579 19668 24772 27929 30468 37158 55858 74316 83787 83887 111716 167574 167774 251661 335148 335548 378311 503322 756622 922757 1006644 1134933 1429457 1513244 1845514 2269866 2768271 2858914 3691028 4161421 4288371 4539732 5536542 5717828 8322842 8576742 11073084 12484263 15724027 16645684 17153484 24968526 31448054 47172081 49937052 62896108 94344162 188688324 212989093 425978186 638967279 851956372 1277934558 2342880023 2555869116 4685760046 7028640069 9371520092 14057280138 28114560276