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145148136 = 23375411597
BaseRepresentation
bin10001010011011…
…00100011101000
3101010010021210220
420221230203220
5244124220021
622223010040
73411511260
oct1051544350
9333107726
10145148136
1174a28a41
1240739920
13240c0693
14153c47a0
15cb21cc6
hex8a6c8e8

145148136 has 64 divisors (see below), whose sum is σ = 415735680. Its totient is φ = 41368320.

The previous prime is 145148119. The next prime is 145148137. The reversal of 145148136 is 631841541.

It is a junction number, because it is equal to n+sod(n) for n = 145148097 and 145148106.

It is not an unprimeable number, because it can be changed into a prime (145148137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90090 + ... + 91686.

It is an arithmetic number, because the mean of its divisors is an integer number (6495870).

Almost surely, 2145148136 is an apocalyptic number.

It is an amenable number.

145148136 is an abundant number, since it is smaller than the sum of its proper divisors (270587544).

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

145148136 is a wasteful number, since it uses less digits than its factorization.

145148136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2154 (or 2150 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 145148136 is about 12047.7440211850. The cubic root of 145148136 is about 525.5376333683.

Adding to 145148136 its reverse (631841541), we get a palindrome (776989677).

The spelling of 145148136 in words is "one hundred forty-five million, one hundred forty-eight thousand, one hundred thirty-six".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 541 1082 1597 1623 2164 3194 3246 3787 4328 4791 6388 6492 7574 9582 11179 11361 12776 12984 15148 19164 22358 22722 30296 33537 38328 44716 45444 67074 89432 90888 134148 268296 863977 1727954 2591931 3455908 5183862 6047839 6911816 10367724 12095678 18143517 20735448 24191356 36287034 48382712 72574068 145148136