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30028737852 = 22334724124547
BaseRepresentation
bin11011111101110110…
…100010110100111100
32212111202100221022000
4123331312202310330
5442444324102402
621443420022300
72112066026451
oct337566426474
985452327260
1030028737852
111180a492223
1259a0691990
132aa7317749
14164c1a9828
15bab403c1c
hex6fdda2d3c

30028737852 has 96 divisors (see below), whose sum is σ = 79841879040. Its totient is φ = 9755562240.

The previous prime is 30028737821. The next prime is 30028737913. The reversal of 30028737852 is 25873782003.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 30028737798 and 30028737807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1211043 + ... + 1235589.

It is an arithmetic number, because the mean of its divisors is an integer number (831686240).

Almost surely, 230028737852 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 30028737852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39920939520).

30028737852 is an abundant number, since it is smaller than the sum of its proper divisors (49813141188).

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

30028737852 is a wasteful number, since it uses less digits than its factorization.

30028737852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24848 (or 24840 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 30028737852 in words is "thirty billion, twenty-eight million, seven hundred thirty-seven thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 47 54 94 108 141 188 241 282 423 482 564 723 846 964 1269 1446 1692 2169 2538 2892 4338 5076 6507 8676 11327 13014 22654 24547 26028 33981 45308 49094 67962 73641 98188 101943 135924 147282 203886 220923 294564 305829 407772 441846 611658 662769 883692 1153709 1223316 1325538 2307418 2651076 3461127 4614836 5915827 6922254 10383381 11831654 13844508 17747481 20766762 23663308 31150143 35494962 41533524 53242443 62300286 70989924 106484886 124600572 159727329 212969772 278043869 319454658 556087738 638909316 834131607 1112175476 1668263214 2502394821 3336526428 5004789642 7507184463 10009579284 15014368926 30028737852