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47745430530 = 2357227359193
BaseRepresentation
bin101100011101110110…
…010111010000000010
311120020110110011201220
4230131312113100002
51240240312234110
633533422135510
73310114314630
oct543566272002
9146213404656
1047745430530
11192810616a6
129305a21596
13466b943155
14244d12a350
151396999370
hexb1dd97402

47745430530 has 32 divisors (see below), whose sum is σ = 130958895744. Its totient is φ = 10913241216.

The previous prime is 47745430493. The next prime is 47745430531. The reversal of 47745430530 is 3503454774.

It is a super-2 number, since 2×477454305302 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (47745430531) 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 15 ways as a sum of consecutive naturals, for example, 113679387 + ... + 113679806.

It is an arithmetic number, because the mean of its divisors is an integer number (4092465492).

Almost surely, 247745430530 is an apocalyptic number.

47745430530 is an abundant number, since it is smaller than the sum of its proper divisors (83213465214).

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

47745430530 is a wasteful number, since it uses less digits than its factorization.

47745430530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227359210.

The product of its (nonzero) digits is 705600, while the sum is 42.

The spelling of 47745430530 in words is "forty-seven billion, seven hundred forty-five million, four hundred thirty thousand, five hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 227359193 454718386 682077579 1136795965 1364155158 1591514351 2273591930 3183028702 3410387895 4774543053 6820775790 7957571755 9549086106 15915143510 23872715265 47745430530