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1028802852 = 2232711371141
BaseRepresentation
bin111101010100100…
…100100100100100
32122200212121012100
4331110210210210
54101333142402
6250030452100
734331452140
oct7524444444
92580777170
101028802852
114888068a0
12248664030
131351b32ac
149a8c8220
15604c071c
hex3d524924

1028802852 has 72 divisors (see below), whose sum is σ = 3242296512. Its totient is φ = 267220800.

The previous prime is 1028802847. The next prime is 1028802877. The reversal of 1028802852 is 2582088201.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 182799 + ... + 188342.

It is an arithmetic number, because the mean of its divisors is an integer number (45031896).

Almost surely, 21028802852 is an apocalyptic number.

1028802852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1028802852 is an abundant number, since it is smaller than the sum of its proper divisors (2213493660).

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

1028802852 is a wasteful number, since it uses less digits than its factorization.

1028802852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371169 (or 371164 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 1028802852 is about 32074.9567731587. The cubic root of 1028802852 is about 1009.5102196734.

The spelling of 1028802852 in words is "one billion, twenty-eight million, eight hundred two thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 7 9 11 12 14 18 21 22 28 33 36 42 44 63 66 77 84 99 126 132 154 198 231 252 308 396 462 693 924 1386 2772 371141 742282 1113423 1484564 2226846 2597987 3340269 4082551 4453692 5195974 6680538 7793961 8165102 10391948 12247653 13361076 15587922 16330204 23381883 24495306 28577857 31175844 36742959 46763766 48990612 57155714 73485918 85733571 93527532 114311428 146971836 171467142 257200713 342934284 514401426 1028802852