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154120113 = 32717151953
BaseRepresentation
bin10010010111110…
…10111110110001
3101202000010001100
421023322332301
5303423320423
623143155013
73550666530
oct1113727661
9352003040
10154120113
1179aa67a4
1243745a69
1325c12344
141667c317
15d7e5343
hex92fafb1

154120113 has 48 divisors (see below), whose sum is σ = 271454976. Its totient is φ = 82252800.

The previous prime is 154120111. The next prime is 154120121. The reversal of 154120113 is 311021451.

It is not a de Polignac number, because 154120113 - 21 = 154120111 is a prime.

It is a super-2 number, since 2×1541201132 = 47506018462265538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (154120111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 161245 + ... + 162197.

It is an arithmetic number, because the mean of its divisors is an integer number (5655312).

Almost surely, 2154120113 is an apocalyptic number.

It is an amenable number.

154120113 is a deficient number, since it is larger than the sum of its proper divisors (117334863).

154120113 is a wasteful number, since it uses less digits than its factorization.

154120113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134 (or 1131 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 154120113 is about 12414.5121933969. The cubic root of 154120113 is about 536.1501595794.

Adding to 154120113 its reverse (311021451), we get a palindrome (465141564).

The spelling of 154120113 in words is "one hundred fifty-four million, one hundred twenty thousand, one hundred thirteen".

Divisors: 1 3 7 9 17 21 51 63 119 151 153 357 453 953 1057 1071 1359 2567 2859 3171 6671 7701 8577 9513 16201 17969 20013 23103 48603 53907 60039 113407 143903 145809 161721 340221 431709 1007321 1020663 1295127 2446351 3021963 7339053 9065889 17124457 22017159 51373371 154120113