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49253813388 = 223213105243191
BaseRepresentation
bin101101110111110000…
…011000110010001100
311201010120201222000200
4231313300120302030
51301332434012023
634343224053500
73362361335403
oct556760306214
9151116658020
1049253813388
1119985547aaa
129667004290
13484c2abba0
1425535b263a
1514340ec743
hexb77c18c8c

49253813388 has 36 divisors (see below), whose sum is σ = 134079826608. Its totient is φ = 15155019360.

The previous prime is 49253813383. The next prime is 49253813393. The reversal of 49253813388 is 88331835294.

49253813388 is a `hidden beast` number, since 4 + 9 + 253 + 8 + 1 + 3 + 388 = 666.

49253813388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (49253813383) and next prime (49253813393).

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (49253813383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52621128 + ... + 52622063.

It is an arithmetic number, because the mean of its divisors is an integer number (3724439628).

Almost surely, 249253813388 is an apocalyptic number.

It is an amenable number.

49253813388 is an abundant number, since it is smaller than the sum of its proper divisors (84826013220).

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

49253813388 is a wasteful number, since it uses less digits than its factorization.

49253813388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105243214 (or 105243209 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

It can be divided in two parts, 49253 and 813388, that added together give a triangular number (862641 = T1313).

The spelling of 49253813388 in words is "forty-nine billion, two hundred fifty-three million, eight hundred thirteen thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 105243191 210486382 315729573 420972764 631459146 947188719 1262918292 1368161483 1894377438 2736322966 3788754876 4104484449 5472645932 8208968898 12313453347 16417937796 24626906694 49253813388