Search a number
-
+
1029898900 = 225220395051
BaseRepresentation
bin111101011000110…
…000001010010100
32122202221021200201
4331120300022110
54102123231100
6250110150244
734343665462
oct7530601224
92582837621
101029898900
11489395318
12248ab2384
131354a8144
149aad1832
156063a36a
hex3d630294

1029898900 has 36 divisors (see below), whose sum is σ = 2236419360. Its totient is φ = 411676000.

The previous prime is 1029898897. The next prime is 1029898901. The reversal of 1029898900 is 98989201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1029898901) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 201375 + ... + 206425.

It is an arithmetic number, because the mean of its divisors is an integer number (62122760).

Almost surely, 21029898900 is an apocalyptic number.

1029898900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1029898900 is an abundant number, since it is smaller than the sum of its proper divisors (1206520460).

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

1029898900 is a wasteful number, since it uses less digits than its factorization.

1029898900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7104 (or 7097 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 46.

The square root of 1029898900 is about 32092.0379533616. The cubic root of 1029898900 is about 1009.8685905561.

The spelling of 1029898900 in words is "one billion, twenty-nine million, eight hundred ninety-eight thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 2039 4078 5051 8156 10102 10195 20204 20390 25255 40780 50510 50975 101020 101950 126275 203900 252550 505100 10298989 20597978 41195956 51494945 102989890 205979780 257474725 514949450 1029898900