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154052306440 = 23531124235731
BaseRepresentation
bin1000111101111000111…
…0111010011000001000
3112201122011121000021021
42033132032322120020
510010444342301230
6154434243322224
714062362666514
oct2173616723010
9481564530237
10154052306440
115a373568a3a
1225a33980374
13116b0c86016
147655a3d144
154019737c7a
hex23de3ba608

154052306440 has 32 divisors (see below), whose sum is σ = 357798908160. Its totient is φ = 59633150400.

The previous prime is 154052306437. The next prime is 154052306479. The reversal of 154052306440 is 44603250451.

154052306440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1540523064402 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 154052306396 and 154052306405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62116626 + ... + 62119105.

It is an arithmetic number, because the mean of its divisors is an integer number (11181215880).

Almost surely, 2154052306440 is an apocalyptic number.

154052306440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154052306440 is an abundant number, since it is smaller than the sum of its proper divisors (203746601720).

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

154052306440 is a wasteful number, since it uses less digits than its factorization.

154052306440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124235773 (or 124235769 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 154052306440 its reverse (44603250451), we get a palindrome (198655556891).

The spelling of 154052306440 in words is "one hundred fifty-four billion, fifty-two million, three hundred six thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 31 40 62 124 155 248 310 620 1240 124235731 248471462 496942924 621178655 993885848 1242357310 2484714620 3851307661 4969429240 7702615322 15405230644 19256538305 30810461288 38513076610 77026153220 154052306440