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70498240 = 265220307
BaseRepresentation
bin1000011001110…
…11011111000000
311220122200101221
410030323133000
5121021420430
610555004424
71514140141
oct414733700
9156580357
1070498240
113688140a
121b739714
13117b4547
149511ac8
1562c857a
hex433b7c0

70498240 has 28 divisors (see below), whose sum is σ = 167874696. Its totient is φ = 28199168.

The previous prime is 70498231. The next prime is 70498277. The reversal of 70498240 is 4289407.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 70498196 and 70498205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109834 + ... + 110473.

Almost surely, 270498240 is an apocalyptic number.

It is an amenable number.

70498240 is an abundant number, since it is smaller than the sum of its proper divisors (97376456).

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

70498240 is a wasteful number, since it uses less digits than its factorization.

70498240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220324 (or 220314 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 70498240 is about 8396.3230047444. The cubic root of 70498240 is about 413.1040235756.

The spelling of 70498240 in words is "seventy million, four hundred ninety-eight thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 220307 440614 881228 1101535 1762456 2203070 3524912 4406140 7049824 8812280 14099648 17624560 35249120 70498240