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142100620 = 225171921997
BaseRepresentation
bin10000111100001…
…00100010001100
3100220101110101221
420132010202030
5242334204440
622033413124
73343556344
oct1036044214
9326343357
10142100620
1173237332
123b70a1a4
132359450c
1414c2dd24
15c71dd4a
hex878488c

142100620 has 48 divisors (see below), whose sum is σ = 332609760. Its totient is φ = 50678784.

The previous prime is 142100611. The next prime is 142100633. The reversal of 142100620 is 26001241.

It is a junction number, because it is equal to n+sod(n) for n = 142100594 and 142100603.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4539 + ... + 17458.

It is an arithmetic number, because the mean of its divisors is an integer number (6929370).

Almost surely, 2142100620 is an apocalyptic number.

142100620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142100620 is an abundant number, since it is smaller than the sum of its proper divisors (190509140).

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

142100620 is a wasteful number, since it uses less digits than its factorization.

142100620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22042 (or 22040 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 142100620 is about 11920.5964615870. The cubic root of 142100620 is about 521.8335420471.

Adding to 142100620 its reverse (26001241), we get a palindrome (168101861).

The spelling of 142100620 in words is "one hundred forty-two million, one hundred thousand, six hundred twenty".

Divisors: 1 2 4 5 10 17 19 20 34 38 68 76 85 95 170 190 323 340 380 646 1292 1615 3230 6460 21997 43994 87988 109985 219970 373949 417943 439940 747898 835886 1495796 1671772 1869745 2089715 3739490 4179430 7105031 7478980 8358860 14210062 28420124 35525155 71050310 142100620