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2028631468 = 22438921489
BaseRepresentation
bin111100011101010…
…0111010110101100
312020101020011012211
41320322213112230
513123312201333
6533144340204
7101162040313
oct17072472654
95211204184
102028631468
11951122936
12487474664
13264390466
141535cd27a
15bd16aecd
hex78ea75ac

2028631468 has 36 divisors (see below), whose sum is σ = 3676408120. Its totient is φ = 978937344.

The previous prime is 2028631459. The next prime is 2028631543. The reversal of 2028631468 is 8641368202.

It is a self number, because there is not a number n which added to its sum of digits gives 2028631468.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1361668 + ... + 1363156.

Almost surely, 22028631468 is an apocalyptic number.

It is an amenable number.

2028631468 is a deficient number, since it is larger than the sum of its proper divisors (1647776652).

2028631468 is a wasteful number, since it uses less digits than its factorization.

2028631468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714 (or 1623 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 2028631468 is about 45040.3315707156. The cubic root of 2028631468 is about 1265.9048176167.

The spelling of 2028631468 in words is "two billion, twenty-eight million, six hundred thirty-one thousand, four hundred sixty-eight".

Divisors: 1 2 4 43 86 89 172 178 356 1489 2978 3827 5956 7654 7921 15308 15842 31684 64027 128054 132521 256108 265042 340603 530084 681206 1362412 5698403 11396806 11794369 22793612 23588738 47177476 507157867 1014315734 2028631468