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149153154740 = 2257457657737
BaseRepresentation
bin1000101011101000111…
…0001000011010110100
3112020222201222022120022
42022322032020122310
54420431201422430
6152304153424312
713530103616432
oct2127216103264
9466881868508
10149153154740
115828a081837
1224aa710b098
13110acca70a5
14730d10dd52
153d2e5a24e5
hex22ba3886b4

149153154740 has 12 divisors (see below), whose sum is σ = 313221624996. Its totient is φ = 59661261888.

The previous prime is 149153154739. The next prime is 149153154749. The reversal of 149153154740 is 47451351941.

It can be written as a sum of positive squares in 2 ways, for example, as 77068422544 + 72084732196 = 277612^2 + 268486^2 .

It is a junction number, because it is equal to n+sod(n) for n = 149153154691 and 149153154700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149153154749) 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 3 ways as a sum of consecutive naturals, for example, 3728828849 + ... + 3728828888.

It is an arithmetic number, because the mean of its divisors is an integer number (26101802083).

Almost surely, 2149153154740 is an apocalyptic number.

149153154740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149153154740 is an abundant number, since it is smaller than the sum of its proper divisors (164068470256).

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

149153154740 is a wasteful number, since it uses less digits than its factorization.

149153154740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7457657746 (or 7457657744 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 149153154740 in words is "one hundred forty-nine billion, one hundred fifty-three million, one hundred fifty-four thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 7457657737 14915315474 29830630948 37288288685 74576577370 149153154740