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100013148 = 22322778143
BaseRepresentation
bin1011111011000…
…01010001011100
320222012012020200
411331201101130
5201100410043
613531343500
72323045344
oct575412134
9228165220
10100013148
11515003a4
12295b1b90
13179497a1
14d3d5d24
158ba87d3
hex5f6145c

100013148 has 18 divisors (see below), whose sum is σ = 252811104. Its totient is φ = 33337704.

The previous prime is 100013143. The next prime is 100013149. The reversal of 100013148 is 841310001.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 100013148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100013143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1389036 + ... + 1389107.

Almost surely, 2100013148 is an apocalyptic number.

100013148 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

100013148 is an abundant number, since it is smaller than the sum of its proper divisors (152797956).

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

100013148 is a wasteful number, since it uses less digits than its factorization.

100013148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778153 (or 2778148 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 100013148 is about 10000.6573783927. The cubic root of 100013148 is about 464.1792250065.

Adding to 100013148 its reverse (841310001), we get a palindrome (941323149).

The spelling of 100013148 in words is "one hundred million, thirteen thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 2778143 5556286 8334429 11112572 16668858 25003287 33337716 50006574 100013148