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10193428 = 227734987
BaseRepresentation
bin100110111000…
…101000010100
3201011212202101
4212320220110
510102142203
61002251444
7152433310
oct46705024
921155671
1010193428
115832523
1234b6b84
13215b91b
1414d4b40
15d6541d
hex9b8a14

10193428 has 24 divisors (see below), whose sum is σ = 20670272. Its totient is φ = 4307904.

The previous prime is 10193423. The next prime is 10193429. The reversal of 10193428 is 82439101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 10193396 and 10193405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10193423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450 + ... + 4537.

Almost surely, 210193428 is an apocalyptic number.

It is an amenable number.

10193428 is an abundant number, since it is smaller than the sum of its proper divisors (10476844).

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

10193428 is a wasteful number, since it uses less digits than its factorization.

10193428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5071 (or 5069 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 10193428 is about 3192.7148322392. The cubic root of 10193428 is about 216.8237010167.

The spelling of 10193428 in words is "ten million, one hundred ninety-three thousand, four hundred twenty-eight".

Divisors: 1 2 4 7 14 28 73 146 292 511 1022 2044 4987 9974 19948 34909 69818 139636 364051 728102 1456204 2548357 5096714 10193428