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154355420 = 2257121531
BaseRepresentation
bin10010011001101…
…00011011011100
3101202110001211102
421030310123130
5304003333140
623152212232
73552666542
oct1114643334
9352401742
10154355420
117a14756a
124383a078
1325c9548b
14166ddd92
15d83ee15
hex93346dc

154355420 has 36 divisors (see below), whose sum is σ = 328990872. Its totient is φ = 60832800.

The previous prime is 154355363. The next prime is 154355477. The reversal of 154355420 is 24553451.

154355420 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 (154355363) and next prime (154355477).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100055 + ... + 101585.

Almost surely, 2154355420 is an apocalyptic number.

154355420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154355420 is an abundant number, since it is smaller than the sum of its proper divisors (174635452).

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

154355420 is a wasteful number, since it uses less digits than its factorization.

154355420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682 (or 1609 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 154355420 is about 12423.9856728829. The cubic root of 154355420 is about 536.4228813580.

The spelling of 154355420 in words is "one hundred fifty-four million, three hundred fifty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 71 142 284 355 710 1420 1531 3062 5041 6124 7655 10082 15310 20164 25205 30620 50410 100820 108701 217402 434804 543505 1087010 2174020 7717771 15435542 30871084 38588855 77177710 154355420